If the market was following the buybacks and burns of BNB, the price would go up only, as Binance keeps boosting its usecases, besides being used a lot at Defi as colateral, launchpools\launchpads events always happening atleast 1-3 every quarter.
The goal to burn 50% of it still has a long way to go, and if keeps going up it will be even more difficult to achieve, just 40 milions BNB to achieve, but according the current value its 215 bilion... not saying that binance revenue wont achieve such values.
BNB is a very strong coin, and it wont changes as Binance keeps building more and more, the detail is will you hold a coin wich cost 500$ or you will risk into small coins with more potencial returns...