It's great those initiatives exist, I've spent years of my career supporting them, but at replicating what Flash did in its prime, it's still not quite the same. The abstraction leaks around the edges and the community and singular simplicity and straightforwardness of what Flash had is long gone and a tiny open source community always heroically struggling for funding and contributions can't be expected to replicate it.
Also, RE: Animate, updates randomly break things with previous versions, and being proprietary I have no idea how long Adobe is going to let it continue existing and keep it compatible with anything I might want to use it for.
Anyways, the main point of the thread was just that the claims that HTML/JS was this perfect go to replacement for what we really valued about Flash just rings hollow to me 10 years later.