Hi @Underdog, thanks for your post. This is indeed an open issue still and one that has been reported.
I have reached out to our team to see what the expectations should be for a fix for this and I am checking if this is due to the way the fonts are loaded or if there is some limiting factor from google that forces all of the variants to load.
The moment I have further info, I will contact you immediately. Also, this issue mainly impacts the Montserrat font, that is a large font, so the extra variants have a real impact on the site performance. For other smaller fonts the load may not be as much and as less of an impact, just an observation, the real resolution is to of course be able to only load the variants used.
When I have an update, I will post here, you can be assured though, this is an active and open issue, but I cannot give an exact timeline for the resolution.