I think they have $6bn in loans lined up contingent on selling $3bn worth of shares. So pulling out would put a hole in their expansion strategy. It may also b

I think they have $6bn in loans lined up contingent on selling $3bn worth of shares. So pulling out would put a hole in their expansion strategy. It may also be that they would be unable to get such an offer for $6bn again, bearing in mind the now much lower valuation. But then the vision fund has deep pockets, as do its investors so who knows.