How does a company who spends 31k mining BTC that is currently worth 30k and pays their executives tens of millions in compensation work out in the long run?
So the question is not: how does a company ... work out in the long run? the question is: which company actually does things in a sane manner and will survive to be a dominant player in the space once the dust settles?
If someone were to talk to you about the cost of printing and distributing books and how much X costs and depreciation over 10 years, you as an ebook seller would laugh them out of the room. Sure there are things that still apply across all businesses, but people seen to dance around the fact that the reason why depreciation model does not work for bitcoin mining is that it's highly correlated to advances that were made in the mining hardware + the huge role the cost of power (geographical location in the end) has on the whole profitability of things.
Mining needs hardware, which loses value as new hardware is released and mining gets harder. Thus, it depreciates over time.
Exactly, that's the whole point of the article.