Hmmm, hard to say considering that they keep getting record profits year-on-year.
I think it did definitely galvanise a swing towards more openly right-wing politics given Dana White's close relationship with Trump, as well as there being significant overlap between the "COVID-19 isn't a big deal" and MAGA camps. Which is annoying for me, given that I'm a massive MMA fan and definitely don't share the political views of much of it's fanbase. It was irresponsible, but there's a company that has consistently put its profitability before the wellbeing of its fighters, their fair compensation, and often even the meritocracy of the weight classes themselves (Marlon Vera getting a bantamweight title shot off of a single win streak when Cory Sandhagen and Merab Dvalishvili are right there being case in point).