Destroying the open web instead of advocating to fix one of the better underutilized browser technologies for a more Profitable Google. I will not forget the name Mason Freed, destroyer of open collaborative technology.
Blame Apple and Mozilla, too, then. They all agreed to remove it. They all agreed because XSLT is extremely unpopular and worse than JS in every way. Performance/bloat? Worse. Security? MUCH worse. Language design? Unimaginably worse. EDIT: I wrote thousands of lines of XSLT circa 2005. I'm grateful that I'll never do that again.
Only Google is pushing forward and twisting that message.