I never understood why raging like a sperg while watching a film took off as big as did (judging by the amount of CA knockoff reviewers).
Like, with video games, at least there's reason to get pissed; sure, a gamer is still raging at a screen, but at least the reviewer can talk about things they're so frustrated with, like godawful controls and broken game mechanics. To add salt to the wound, most new release games cost $39-59 dollars and are expected to have some replay value: even more reason to vent about it in a video.
Yes, there are endless amounts of stupid things in movies, too, (bad script, effects, acting, writing) . . . but most of them should garner at most an eyeroll and a comment, not a huge histrionic fit.