Why do you say that?
Sure, there were some dramas around how the language/ecosystem should evolve and almost all external opinions are not considered. But again, you could argue that Elm is consistent because of this heavy handed approach to language design. I'm just wondering why you would consider it as `partially abandoned`.
The language itself is still mostly fine, so long as you don't run into its limitations. I still wouldn't recommend it going forward for the above reasons, though. Too many warning signs and contributor goodwill unnecessarily burnt. Evan is a perfectionist and clearly has no interest in developing a feature if he can't see the use case for it (his response to negative numbers in case..of expressions was a classic example).
Personally I think it's all a bit of a shame, Elm is one of my favourite things ever in web development. I really, really wanted/want it or something similar to succeed in terms of major projects being written in it.
This is an effort that takes best ideas from Elm. AFAIK, the creator was one of the high profile community members (or atleast a prolific Elm user).
I'm not sure how this language will pan out. There are too much options for UI development right now. Also, last when I checked, you have to buy in on this framework/lang completely and you had no option of plugging this in an existing project.
Still, I think Elm users may find this interesting.