[Joker_vD]

I would prefer it to finally figure things out properly, and then just stop changing, yes.

> Writing CSS today has gotten significantly easier with flexbox, variables and now nesting.

Which, you know, are not some technically complicated ideas that simply could not have been done thirty years ago. Heck, <table> existed, and so did the algorithm that laid it out, from the outset yet getting flexbox to replicate that functionality took literal decades. And nesting is in no way more complicated to implement than cascading.

> BEM is not part of the CSS spec, that's just a design methodology.

Yes, and it existed for a reason, to paper over the deficiencies of the built-in functionality.