As others have said, if he had more lift, things would be better. I mean the guy can barely dunk the basketball, which means there's no chance he's dunking in traffic.
Aside from blocks, he also misses a ton of shots inside because he's awkwardly throwing it up or having his shot altered by a shot blocker.
I don't know what this means going forward unless he changes his body type. This has been a problem his whole career. Looking back at 2008, he was more successful against the smaller (and aging Pistons) and the matador Lakers than he was against the tall and athletic Cavs (who both, at times, had lineups that likely featured 4 players on the court all taller than Baby).
For the playoffs, it likely means that we will need something out of Rasheed, especially against better and bigger teams.