I see two possibilities:
(1) SpaceX is paying with stock; and
(2) the $60bn pay-out is (a) conditional or (b) never going to be exercised—it was a stalking horse for negotiating the $10bn terms, which gives SpaceX everything it actually wants.
Also one would definitely offer to pay in stock if they believe it is massively over-valued lmao.
Sometimes it helps to go back to the basics to understand company performance: money in, money out?