That is a feature of the model, not a bug.
Exactly that happened to Git. Good. Happening at last in social media with Mastodon
The point is to have a lot of smaller companies rather than one or two huge companies playing "lock in"
No, it's a different thing. Git is not based on OSS code from BitKeeper and Mastodon isn't based on OSS code from FB/X/whatever.
what a bizarre claim. Git was written by Linus because Larry McVoy kicked him off BitKeeper, and then the biggest Git ecosystem software spinoffs (GitHub) are entirely closed source.
It's a bit more problematic for, say, hasicorp. They don't like that.
I'm pretty sure no-one contributing to a product's ecosystem likes it when the previous agreements related to IP underpinning the ecosystem is rugpulled out from under them.
Sure, maybe this is a feature but if you're about to launch an open source sales model company you probably need to think really hard about that idea.
And Docker still had the ecosystem, which they could have dug a deeper moat around. But they didn't, and they failed.
And not for nothing, VMWare has a significantly deeper technological moat than Docker. Containers are not hard to implement, virtualization is.
Their virtualization tools are niche, being squeezed by whatever the cloud provider offers for "free" on one side, and KVM (and platform-native hypervisors) on the other. You rarely hear them mentioned.