This is, of course, my opinion. If I'm not thinking straight make sure to tell me why. I think the differences in the questions are subtle but important.
The android question to me is asking about the app only, and if the app is any good at replicating the poker experience. The question won't help anyone play better poker. I thought that's what this site was for. It may as well be asking is X app good for Y. Thats about as far as the scope of the question goes. If you try to extend the X...Y reasoning you end up talking more software (e.g. "Good Functionality", "Nice UI", "Fast & Responsive"). Perhaps if he'd asked what the best app for android is, without preference, it may not have seemed so narrow to me. Similar to this or this.
The Poker Academy (PA) question IMO is different. Im actually glad you asked this because to be honest, I wasn't sure why I saw them differently until now. PA is/was a learning tool and not just a mechanistic client to play poker...it teaches. There is a part of the question in which the questioner asks for alternatives. Specifically, "...poker training software". Those questions have had a decent response on this site so far.
I suppose it's arguable that all clients are training software of some type if you play enough, but PA actually uses a combination of analysis tools for that job where a basic mechanistic client will not. Like I said before, isn't learning to play better poker what this site is for. An open question relating to that seems reasonable, a closed question about one brand of poker client doesn't IMO.
Whereas the android question will elicit a yes/no response and maybe some alternative suggestions, it's akin to having a discussion on whether Pokerstars is better than Full Tilt is better than iPoker, etc. A pure software discussion. At least people could give an answer based on how well they were taught by PA and not just if they liked using it.
Asking for alternatives to PA will elicit some responses about teaching methodology and effectiveness of the tools at improving your game.
I hope this didn't come off as vague or ranty, It's not my intention. I just wanted to state what I thought. By all means if you can offer some counter arguments then I could re-open it, otherwise it'll stay closed.
Also, When I look at the FAQ description of poker.se it seems pretty broad and vague. https://poker.stackexchange.com/faq#questions. perhaps it could be more specific to encompass these grey areas, in whatever direction the community sees fit. It is editable!