Around the same time, Google tried to deprecate SMIL (SVG animation tech), which would probably have led to its removal after some time. This also failed, and it’s used more than it was then (though CSS animations are probably quite a bit more popular, and have over time become more capable), probably because now all engines support it robustly (MSHTML and EdgeHTML never did).
I hope that we’ll get a more formal commitment to XML and XSLT, and XSLT 3 in browsers, out of this.
Maybe they should stop wasting money on pointless, proprietary side tangents before they set out to break standards.
Each time so far, there’s been movement for a while, significant pushback, and the one who was championing removal realises it’s hard, and quietly drops it. Smaug from Mozilla bringing it up at a WHATNOT meeting a few months ago looked like it was heading the same way, a “yeah, we’d kinda like to do this, but… meh, see what happens”. Then a few months later Mason Freed of Google decided to try championing it. We’ll see where things go.
Of course, I could be making the same mistake in reading your comment as expressing disagreement with the one you're responding to! If that's not the case, then I'll happily accept my mistake so the chain can hopefully stop here.
(edit: I'm realizing now that this definitely is my own mistake, as I misread which comment this one was replying to. I might need to invest time in finding a new app for reading HN on mobile, since the indentation levels on the one I've been using clearly aren't large enough for my terrible eyesight...)