..... My conclusion is that BNB is too centerlized and that means that any whale would think twice before investing in BNB, which negativly effects the price long term
I wouldn't be too sure what whales would think or not to think unless you're a whale yourself. Some people that entered crypto coming from traditional markets are open to the idea of coin control or centralization.
that suggests to me that the success of BNB is directly linked to how successful Binance is and will be in the future
BNB was created for Binance so it only follows that its success depends on the platform and its chain.
and that goes against everything that crypto stands for.
What does crypto stand for? Times have changed and people view it differently now.