My answer would be "no," since rather than buying just a small piece of your movie idea, Amazon studios options the entire thing immediately. Their arrangement is "if we decide we want to make your movie, we will pay you $200k and that's all."

In some sense $200k is actually quite a lot for a no-name script, but since Amazon gets all the equity I don't think we can call it a seed fund. This may be how the movie industry works (all the upside for a new writer is in reputation), but since you don't get to make the movie and earn the profit it doesn't seem comparable.