Using Massei logic, we can also make an argument that the entry through the window was not staged:
{But the fact that this was in fact not a simulation, a staging, can be deduced from further circumstances. For the staging to look credible, certainly the stagers would have picked a point of entry which made obvious sense. And a window, 3.5 meters off the ground, does not make obvious sense. Certainly the stagers, if we suppose they had existed, would worry that the police might quickly determine that entry through a 2nd story window was physically impossible. It would have made far better sense to smash the front door lock with the same rock, or perhaps to scrape a sharp metal object (as an unfolded paper clip) into the keyhole to make it look as if it had been picked. The physical evidence in Filomena's room also militates against a staging. The distribution of glass shards (which extended meters from the window) would have required meticulous placement of glass after the window was broken from inside with the rock, which not only would have been tedious, but also would have risked injury. Such an injury would have been difficult to explain and could have easily led to blood and DNA evidence being left behind to prove the staging. Furthermore, it is illogical that a putative stager would not think to distribute the glass first, and ransack the room afterwards. Only a moron would invert the natural temporal flow.}
Exactly. The very same argument that is made for this being an improbable location/technique for a real break-in can also be used for it being an improbable location/technique to
stage a break-in!
The truth is that Filomena's window was a perfectly logical and perfectly feasible site for a break-in. Yes it had its disadvantages, but then so did every other potential means of ingress. Ad it had some distinct advantages - the most obvious of which being that it was the closest window to the exit routes from the cottage. But of course even if this window
had been an improbable choice of entry for a burglar, all that really matters is that it was at the very least a feasible point of entry (we should never assume that every burglar always chooses the "best" point of entry).
I also happen to have significant reasons to believe that Filomena's window might actually have been the only feasible means of gaining entry into the entire cottage (without the need for special equipment or significant time/effort). All the downstairs windows were grated/barred - so we can rule them out. All the upstairs windows that were accessible from ground level were also barred. Of the remaining windows, Knox's and Meredith's were far too high above ground level to make entry easy.
And then we come to the balcony window and door (the "obvious" choice according to certain pro-guilt commentators). Well, firstly, one has to consider that this window and door were at least as visible from the road and nearby buildings as Filomena's window. Then one has to consider that they were on the "wrong" side of the building as far as an easy escape was concerned: the escape route would necessitate running all the way round the outside of the cottage, including the narrow passage adjacent to Laura's window and that of the large bathroom.
But aside from all those considerations, I think that the far more important consideration is that the door and window on the balcony were of modern, double-glazed design and build. This would make them
much more difficult to open - whether by forcing the frame or breaking the glass - than Filomena's window, which was of a very old timber frame casement design, with thin single glazing that broke readily with moderate blunt force. It's my belief that in order to enter the flat via the balcony window or door would have required specialised tools and techniques: either a tool to break through double-glazed panes, or a heavy jemmy to force the frame, or a drill to drill out the lock.
I think it's actually very possible that Guede might even have tested the balcony door/window prior to opting for Filomena's window. He took care to state that he had "wandered" around the cottage, and I think this is an attempt to obfuscate his recce work. I think he might have shimmied up onto the balcony, but then realised he couldn't get in through either the door or the window with his limited tools and skills.
As a footnote, I wonder whether the "crack" police (you know, the same ones who even failed to secure the front door of the cottage for several days) maybe left the small window on the balcony (the window in the kitchen area) either unlocked or even ajar. If so, that would obviously explain the fact that this window was used for subsequent break-ins by others while the cottage lay empty as a "sealed crime scene"(!).