If you can’t enjoy a movie/tv show/book/etc. because it was “spoiled” all it means is that it’s shitty. Any good work of art/entertainment is still interesting and worth engaging even if you know exactly what’s going to happen.
If it isn’t all that means is that it’s gimmicky shit.
And you know this is the case because people who freak out about this stupid bullshit are always diehard fans of retarded prole brainslop like that dragon show or video games or some other dumb bullshit for dumb people.