SPOILERS
I can't speak to what would trigger someone else, not having the same triggers and also not being as moved as others have been by the production. Personally, I found the narrative too chopped up to be that affected by the abuse/rape issues with Martha and Ilse. I think the actress who plays Martha does a beautiful job but I don't think it attains that much emotional depth. If she can listen to it on the album I don't think it would bother her on stage. But again, I'm not sure.
"In this production, I'd say it's the same, or even more so consensual than in the original. You never hear Wendla saying the word "no", nor is there a struggle."
As for Wendla, I disagree greatly. Unless they changed it from previews, she says no repeatedly and pushes him away. She also doesn't say yes. It's part of the reason I thought dividing the role created so much of a power imbalance because Morritz coerces her and she can't really voice an objection. She "consents" by "allowing" him to move forward and laying back. You can make a strong argument that it's a rape scene. It's played as him overcoming her concerns but it's difficult to see it as any more romantic than the earlier scene where she asks him to hit her and then ends up apologizing later.