> “In violation of GPL” is a stretch.
The originally envisioned distribution method, in fact, was "Send FSF a blank 9-track tape and they'll fill it and mail it back". Nor, obviously, does anything prevent someone who downloads this from Drive from mirroring it on GitHub or wherever.
This is arguably bad stewardship of a historically open source project. It's certainly not a license violation.
We said artificially delaying it for weeks or more is how they're violating it, not using Google Drive. It's also not provided in the preferred form for modification. It isn't in the form expected by the build system and causes it to not function in the way it did for their own builds.