I'm a big SpaceX fan, but as far as I can tell, this doesn't contain any real updates. It's just aspirational thinking.
I don't see any reason why SpaceX should not continue to plan in such an agressive fashion, as there isn't really a clear reason that anybody can point out to about how its fundamentally impossible.
Its mostly competitors and activists trying to slow down SpaceX and post like this are trying to tell people 'look these are what we are planning and it will benefit everybody'.