Thanks for the feedback! I'll talk to Jon about trying to make the website push people to the forum to see what is going on.

We no longer keep compatibility with TextMate in any of the default syntaxes. Everything is now a .sublime-syntax, and has access to all of the advanced stack and scope manipulation features.

If you are interested in providing feedback, the packages are at https://github.com/sublimehq/Packages. Tests could be helpful, even if failing. The test syntax is described at http://www.sublimetext.com/docs/3/syntax.html#testing and scope naming guidelines at http://www.sublimetext.com/docs/3/scope_naming.html.