This is entirely the point. What Chelsea have been doing is like pawning the family silver to maintain their lifestyle. It's the complete antithesis of 'sustainability'.
Their 2024 accounts (for Chelsea FC Holdings, not the football club) have only just been filed (at the last possible moment) so aren't yet visible publicly, but looking at their 2023 accounts showed they generated £173.5m from their operations at holding company level.
They then spent a net £545m on players (that's just cash paid and received), which was financed by net borrowing of £425.5m. That's like taking out a mortgage to buy a new car, or pay for a holiday. These borrowings appear to have come from another company and the holding company has lent over £1.2bn to its subsidiary companies (interest free apparently). That is worth about £100m a year to them, applying a reasonable rate of notional interest.
No financial framework worth its salt should be allowing the shifting of assets around to disguise excessive spending that genuinely threatens the future existence of the club. FFP isn't great, but it doesn't allow this. PSR is a complete joke.