Yeah, with the use of "it feels" this time I was literally trying to express the feeling of "oh no, another big divergence in js" like it felt at the time (even if it was indeed ad "ideological split" as you say, I remember clearly at the time a lot of blog posts about how it meant that in the long run we COULD have different ways of doing things / calling apis / build frameworks / etc... )
You cannot always cleanly differentiate these two. You could argue that "Node vs io.js" was an "ideological" split because they wanted different governance, but one big reason they wanted different governance is to make different technical choices (for example, track upstream V8 more closely), so you could also claim this was a "technical" split too.
