Agreed. The article is very sloppy, but that doesn’t mean the central thesis is wrong. I’m not conversant enough with financial theory to say one way or another. Anybody care to critique this?
And if OpenAI were an isolated case, that might be all there is to it. But the whole point of the article is that it isn't isolated. So if OpenAI can't raise the money to execute on those contracts, it's unlikely that another AI company will have the spare cash to buy them at anything like full value. Remember, everyone in that market is riding the same second derivative. OpenAI is just a bellwether.
When OpenAI will be looking to sell and everyone knows it, the price would be x0,7 for depreciated used hardware or go bankrupt yourself.
It looks like you want to discuss "if prices and demand drop", which would be a different scenario, which I do not believe is likely in the same timeframe barring some separate economic meltdown.
In today's world, the selling price would likely be an increase over what OpenAI paid. This isn't selling hardware, it's selling contracts for future hardware. It's basically futures trading.