God deliberately blinding himself to certain facts shouldn't be a surprise since gods reflect their believers.
Here is the problem with god blindfolding himself to certain facts.
If i want to never smoke a cigarette in my life, i must know what a cigarette is, so that i can avoid smoking one. This isn't a problem if we are talking about something, but when it comes to simple knowledge...
If my goal was to never have any experience with a cigarette ever, it is impossible. Because to know i don't want to have any experience with a cigarette, i need to have some knowledge of cigarettes ( at the very least what they are.) , which instantly stops me from being able to never have any kind of cigarette experience or knowledge.
So to illustrate using a more divine example.
God doesn't want to know how everything is going to turn out. In order to know what he needs to blindfold himself from... (there is no way for this not to be repetitive.)god needs to know what to blindfold himself from, which means he already knows it.
But then he could just magic that knowledge away, but that leaves him in the awkward position of being right back where he started. Now that he has absolutely no knowledge of what he doesn't want to know about, he doesn't know what he doesn't want to know. Which means that he has no idea if he is seeing it, which means that he needs to find out what it is, which means he knows, and on and on it goes.
It would be like if i could erase my memory of how my remote works, in order to stop watching so much t.v. I'd do it, then see the remote, fiddle a bit, turn the t.v. on , remember that i didn't want to watch so much t.v., erase my knowledge of the remote, fiddle with the remote a bit, turn the t.v. on, etc etc etc.
In short, ham fisted character nerfing in order to make the character more interesting. The bible does this more than supernatural for **** sakes.