I can't agree. I like Kellerman hooking up with Scoffield and Burroughs and Mahone is great too but the other stuff doesn't interest me at all. T-bag is a great character and all but the scenes with him, C-Note, and Bellick were all just boring.
As I understand it, this film kinda sorta takes place within Bryan Singer's continuity, so I suppose they just made Alex the older brother. I realize this doesn't quite explain away Mystique, but it's the best I can come up with.