oyyoyyoy,
I never claimed the mitzva of kedoshim tihyu doesn’t exist and I personally would never attend this kind of event, in part for that very reason. But that’s my personal view and I defend the choice of any Jew who wishes to attend such an event without being rebuked for it.
The spiritual level of R. Meir Soloveichik’s following is his business and while he doesn’t need anyone’s approval, he also doesn’t deserve criticism. Especially from those who don’t come anywhere near him in learning and yiras shamaim.