I think he can, but the sad truth is likely that it is based on the money 'invested' by him into the club, which I believe based on how he's dealt with us, will be ring-fenced to protect against exactly the scenario you're describing. There's no way he put that money straight into us without protection to use it to pay back FPP if necessary.
And unfortunately I also think you might be understating an apocalyptic scenario and what he could do to alleviate that. The EFL as a whole won't survive if there's no way around the matchday revenues, so I think he'll see it as an easy way to cut spending on the pitch. Because he starts with a nigh on clean slate, I suspect he'll put out a diabolical team if the financial situation is that bad. He only needs to 'find' around £2m in club revenue to pay the players that are currently contracted for 2020, and despite the downturn, he'll easily get that from sponsorship, TV rights and people paying to watch games. I'd peg our wage budget at <£5m in a best case scenario for next year.
And there's no guarantee, if we work against him, that FPP do swoop in, particuarly if the net effect is that we are nowhere near promotion if/when they had to make that decision. I think it's a slippery slope wishing ill on Donald's ownership, because it can only come with the risk that we may be left insolvent with nobody willing to save us.
See, I can see where your logic is in that, but Donald keeping the club surviving, at no cost or loss, in League One, makes no sense on either side.
He’s got the drama/trauma of running a club for no gain whatsoever.
If, and it’s if, the clubs liability is zero and that’s all on Madrox, in a ‘worst case’ does the club sit their debt free, but without funding?
Now, that would be a serious situation in theory, but there would be a massive queue of buyers in it.