I agree it's possible. It's easier to manipulate than most stocks because the short interest is so high. MM's can force a short squeeze more easily than other stocks, that's the problem with shorting this stock.
But people aren't stupid. Who's really going to be buying this stock above $775? (no point of manipulating it up to $900 if nobody will be buying from you at that price). I can't imagine anybody in their right mind is buying at this price, after Musk's tweet, with Q2 obviously going to be far worse than Q1. Q2 will be a nightmare for this stock, and it seems pretty obvious too.