Thanks Scorpion, yes, I agree: SomeAlibi was extremely evasive about this whole issue. He said he didn't think Comodi was deliberately lying, so I asked him whether in that case he thought she simply didn't know the time of the phone call and didn't bother checking it (despite it being critical to her whole approach) but again I got a very evasive answer. So I think at that point I gave up!
As you say, it was quite a clever and successful (though dishonest) tactic on Comodi's part, so SomeAlibi's claim that it would have been "dumb" is incorrect; it paid off. And it's very obvious it was a deliberate and calculated move, as I think SA knows, even if he didn't want to admit it.
Interesting to hear what your brother's barrister friend said about it: I was actually pretty curious as to whether or not this kind of thing was generally accepted as a tactic amongst other lawyers and seen as the norm, and was hoping to get an honest and straightforward opinion on that from SomeAlibi; unfortunately, no such luck.