The financials tell me what I would expect to see: by any reasonable standard, the club is bankrupt. It's only being kept afloat because its largest creditor apparently thinks he can eventually recover enough of his outlay and continued cash injections to make doing so worthwhile.
Post-COVID, most clubs are in a bad spot. Ours is worse than most due to the magnitude of the cash bleed, relative to the value of assets. Look at it this way: suppose you had the choice of buying West Ham or Everton. West Ham's operating loss and cash bleed are about a quarter of ours, in both cases. If West Ham is worth around 600 million pounds (based on the sale price of a 27% stake a few months ago), we're not.
I can't see why he's still throwing good money after bad. It implies that he cares, which is a good thing. I also fail to see how doing so is anything other than sunk cost fallacy, viewed rationally.