If you don't like the look of how it plays then that's fair enough, although I think they've given a decent amount of information all things considered - I'd have liked to have seen a final model too but I understand they're narrowing down on the best supplier and those molds to cast the final models aren't cheap to produce it seems so I can understand why they've done it this way and I think Angry Joe is a stickler for quality here so I think the final result will be good.
The higher stretch goal targets seem more to do with making sure they don't over-stretch themselves rather than to do with licensing issues.
I'm sure they could go all out continuing to offer more figures at the same intervals but you have to draw a line somewhere, as there's a lot of projects that get into trouble with over-promising on rewards and struggling to deliver on those promises. Considering how much extra content you get for the Street Fighter pledge level alone (with all the extra stretch goals figures) I think it's a great deal, and hey, if you don't like the game I can't see you struggling to get your money back on it or making a profit down the line.