Coins like BNB might be at dumping today but it won't stop there. It can go on a long bear market again and the price of it would be just as stable as it can be.
However, when the market goes bullish again, everyone will get to see how quick the price of it goes up. At the time of bearish, it's where decisions should be made because it's buy now or miss it.
It is a bit surprising that BNB also moves along with the market despite having a real business model in place and those quarterly burns. In comparison to many other coins there is actually a real cashflow that is used to conduct those buybacks. But it has been like that forever. Maybe we will see some decoupling of Bitcoin soon, but for now it's repeatedly the same. Bitcoin drops, everything else also drops.