>>24836702
It's not even really a suspension of disbelief thing, it's thematic. By this point in the story I'm inclined to believe that the Fremen, without Paul's assistance at all, were perfectly capable of raiding the Imperials indefinitely and nothing was ever going to stop them. The Sardaukar went negative against them in the scene where they rescue Paul ffs, he hasn't taught them the space jiujitsu yet. The Harkonnen can't possibly be a serious threat to them.

I was pissed at the film for doing this, now I see it's actually just as absurd in the book.