Claudius one of the great failures of all football regulation is that it focuses on profit and loss, and not cash flow.
Yes, there are a multitude of loopholes but PSR is precisely that: a three-window cap on reported losses.
There is a degree of regulation around player fees and wages, so latitude on this kind of reporting relies on compliance from other clubs or from parties outside the system. Two examples: the fraudulent deals we saw on young players earlier in the window, and the mysteriously high fees paid by Saudi interests for certain players.
In Boehly's case what you notice is that the outlets all report "Chelsea are confident of meeting their PSR commitments" although it will be a challenge for them to do so. My guess is Chelsea's bean counters will have taken the view that the benefits of hoarding all these players will outweigh the penalty they receive.
If there is an easy route Arsenal can take to circumvent PSR requirements, what would it be?