Vivian played the task as he should have.

Gonna get a lot of downvotes for this, but if you see the videos... it's clear how chum just climbed the stetcher and held on to it w both her legs, what is Vivian supposed to do? He just kept pulling the stretcher and becase of chum's both legged grip, she fell and her head hit the floor.

If he wouldn't be pulling the stretcher he won't even have a chance to keep playing.

Also chum has been violent towards chahat on multiple occasions, she is an aggressive Player in tasks everyone has seen it. Chum can be appreciated for her spirit without bringing in the narrative of "Vivian is a misogynist"