Absolutely agree, but where you say "why they still haven't done this is out of my understanding" - again, it's Konami playing it safe (alongside console CPU restrictions), in my opinion. Adding FIFA's responsiveness and ball physics means the core gameplay and the way the AI works has to change, it's not easy for the CPU to compete against you and stop you winning if the framework isn't rigid enough for it to be able to be more intelligent than you, and/or cheat you if it can't figure out a way to (which it's been programmed to, because they're Chelsea and you're Burnley, and it will do whatever it takes to give a realistic result).
They alter things like that, the whole gameplay changes, and I think Konami's panic is that people stop buying it altogether at that point.
However, long-standing bugs and issues - I think they get ignored because they just don't see the issue. I really do believe that. I don't think word travels up to the top. Especially when it has to be translated from a number of European langauges to English. I wonder if the same bugs and issues are mentioned in the Asian market or if they're just glossed over? I've not read any Japanese reviews of the game for example (well I couldn't, I don't speak Japanese).