Oh, please. Bitcoin fluctuated 24.3% between below $21,500 and above $25,000. "stabler than a raft of mainstream assets" my hind leg!
Of course, with any volatile asset lines will cross sometimes at arbitrary dates. And that's all this is, two arbitrary dates (Feb 1 and Feb 28) that wildly fluctuating (by fully 1/4 in a month!) lines happen to cross. You could take Dec 19, 2020 and Feb 28, 2023 and write the same article; this would be no more deceitful.
Bitcoin is not becoming less volatile, nor can it. It is engineered to be volatile. Bitcoin developers decided against a market-determined rate of supply, opting instead for a centrally planned rate of supply, artificially fixed in advance. This disables Bitcoin's rate of supply from fluctuating naturally in response to market demand -- which is *the* price stabilizing mechanism.
All it takes to swing the price wildly for a whale is to feign demand by wash trading with your own wallets. Happens all the time, it's called priming the price before a big dump or buy. Bitcoin developers chose central planning over a market determined rate of supply because they wanted it to be volatile, forever. That planned price volatility is also the only reason it gets on the evening news.