I saw that announcement. And noted that BuddyPress is never mentioned.
Does their ‘platform’ include all of BuddyPress or just the templates?
Themes often include the BP templates as overloads but not the component classes.
If it is a fork then it would be the first commercial fork, afaik.
It is a fork. And I think they did a great job.
I was able to toggle between it and BP without issues on a standard installation.
I’m not surprised to hear that some conversions are probematic – it is nigh impossible to anticipate all the possible permutations.
They have obviously considered what is best for the end user and supportable by them.
( As opposed to what is most interesting for the devs ).
It would be great to see their platform on github. I think it would receive some serious attention.