Chris Pratt may, I theorize, do for summer blockbusters what "Cabin in the Woods" did for horrible B-horror movies: he makes it better by having established a sort of "metaspace" for his presence in the film. This was a film about Starlord after he decided to spend a year or two on earth to recover from the profound effect of channeling an infinity stone's power (so he's a little grumpy). And of course this is the Marvel Earth so it makes perfect sense that we've had twenty years of dinosaurs off Costa Rica and a massive park so successful people are actually getting tired of ordinary dinosaurs. And InGen is actually a front for AIM or Hydra.
Ignore those cockamamie people with their theory that Pratt's character is just the kid from Jurassic Park I all grown up. My head cannon is much better!!!
Only Starlord would be completely unphased by working with velociraptors.