Plenty advertiser pulled out due to ultra right wingers, then due to this whole twitter badge controversy (which did at least result in many genuinely funny posts, r/realtwitteraccounts ). Also, one can only imagine the lost business knowledge of all the fired people that will soon creep up on the remaining team.
Advertisers will come back if Twitter still has users and engagement.
Imo, if you're running a social media business, a key metric to optimize for is traffic and engagement. Elon seems to be doing that well enough at least.
Honestly, I can’t even imagine running that company worse than what he does right now.