I think that's probably right but it depends on who else decides to join the party ("last chance to buy TSLA before it goes private") and also depends on timing. Shorts seem not to be very concerned yet and that could come back to bite them if they all try to head for the exits at the same time.
Also, the 50% number for institutional investors selling could turn out to be too high. Existing investors could decide to buy more shares before it goes private (I did
). Or option holders could decide to convert to shares so they could own TSLA as a private company.
All sorts of awkward, uncomfortable scenarios for our short-selling "friends."