Let's be real guys it's not like they actually put any of their own money in. They would have been paid in equity in the company/BS tokens, so yeah it's a loss but hardly a wipeout.
I bet they only lost a few hours of work, as in advertisement. They probably got paid in FTT and that is it.
So far I have only seen that they were given shares for doing ads and promoting it. https://nypost.com/2022/11/11/how-the-crypto-collapse-of-ftx-hurt-tom-brady-steph-curry/
C'mon. They are "brand ambassadors" for FTX and invest in a shtcoin? They received 0.25% of the outstanding FTT at the time the deal was struck (per cap-tables) and possibly cash payments. IOW, they ostensibly worked for free.