This means that as more and more institutional investors are getting into ETFs, it could possibly mean that Bitcoin will become more stable (less volatile).
But the question is: can we still expect huge price increases like 10x or even 100x.. like many early investors hoped for?
Risk / reward. As Bitcoin becomes more stable the gains may not be quite the same as, say, 10 years ago, but it also mitigates some of the risk that early investors took on. Doesn't mean it can't continue to perform greatly and play a role in your diversification strategy.