The armor system has no inherent problem. You might like it or not, but it's a matter of taste. I like the system better than DOS, fro example. You might not like it as much, but quit with the arrogance to demand some kind of official position from the developer at this point.
I also think the classes are pretty balanced. Different battles let different characters shine. I also found multiclass chars pretty useful.
I also think the game is not hard at all, being actually easy at times (in tactician). There were very few fights I had to load and it's been quite enjoyable.
Those are my opinion, just like the opposite positions are opinions, stop with the "... is BROKEN!!!" because you didn't enjoy it.
