GC was not part of [the MVP][1], and the MVP itself was only finished around 2 weeks ago, so of course not. They haven't even had an opportunity to work on it yet. Like I said, "long-term goals".
If you want to get an idea of where GC is on the priorities list, have a look at the [roadmap][2]. There are still other things they have to deal with before they start working on GC support, but it's coming.
That's true for now, but they're [planning][1] on adding support for that in the near future.
[1]: https://github.com/WebAssembly/design/blob/master/GC.md