It's a BS answer. The real answer is because Lucas sold his schwanz to console manufacturers.
Comparing this "Apprentice" use the force to pull in an entire STAR DESTROYER. Then look at Yoda using all his might to pull up the X-Wing...doesn't make sense.
You could go without it.
You must consider the fact that Yoda was old. It would have probably taken all of his might to pull up the X-Wing because of that.
It wasn't that great anyway, the story was okay but gameplay and otherwise was uninspired
Actually, I know a bit about this... Why Yoda had a hard times with just an X-wing, ect.
I don't think I'll go into here, though.
I think the best option is to rent the Game.
Luckily I managed to buy, beat, and sell it before it became too unpopular. Only made a $0.40 loss on it.