And a company like OpenSea can arbitrarily destroy the value of blockhain assets on a whim as well. It turns out that the problem isn't that companies like Stripe are evil and looking to screw people over, the real truth is that money is complicated and dealing with things like fraud cause myriad edge and corner cases which have real financial effects.
Blockchain, for all it's promises of decentralization, has rapidly centralized on a few players who's interpretation of the chain are practically law, and thus, is subject to the same problems as any other centrally governed system. The many differences include that stripe (and it's competitors) can handle millions of transactions whereas bitcoin struggles on a few thousand.