Once again: nothing was changed about the actual content of the education the students were receiving. All that happened was that a few students complained about content, and the teacher added trigger warnings. That's it! Should those students maybe be a little more willing to engage with the material? Probably, but the classroom is also not a place of therapy so demanding that they just sit through it because it's "good for them" or whatever is also bullshit. They can participate or not at their leisure -- if they don't, they don't pass the class. Problem fucking solved. That's how it worked here, note.
All of this is a classic moral panic. It's not about what actually happened, which is some trivial bullshit, but about turning a few trivial incidents into some seemingly urgent attack on the culture at large.
Who gives a shit that a few students complained about content. Complaints about classes have happened for decades upon decades. As long as teachers aren't forced to change the actual content of their classes, there's no actual problem here. Just a lot of whining about the perceived differences of young people these days.