The linked article's headline is dishonest. They're saying bitcoin miner Riot Platforms needs BTC at $98k to justify its current stock valuation. A very different thing. None of it matters though; if hashpower falls, the difficulty will as well, and the most efficient miners will be profitable. Irresponsible miners that levered themselves get rekt. Hashprice derivatives are coming though. Next cycle will look much different than the last for miners.