While BNB appeals to the wider crypto users because the binance smartchain currently seem to have overcome the biggest issue that most cryptocurrency users have with bitcoin ethereum and the ERC 20 blockchain tokens. This problem is the speed of transaction and and the cost of transactions.
This is a problem that BSC currently solves, and while a lot of people might argue that BNB is not a fully decentralized coin, i think it is worth noting that a lot of users dont care much for how decentralized a coin or token is, they just want the solutions they it offers.
This is why i think BNB an the BSC will remain very valuable in years to come
yes, I totally agree with your opinion that BNB is able to provide solutions to problems currently being faced by crypto users. So for the next few years BNB will be able to stick with the solutions they provide users until new problems will emerge in the crypto world. then another cryptocurrency will be born which will offer solutions to new problems later. So for now many users have switched to BNB and BSC instead of sticking with ethereum (ERC20).