When I read "Missed their big payday" I assume they've been screwed out of their shares via convertible shares or liquidation preferences.
They didn't get to sell the top on the post-SPAC debut. Their Bs are being converted to As, but it's not as fast as they want. They are missing their maximal payday (assuming BZFD shares don't recover) but there is nothing here about them not getting their shares and being about to sell.