I don't think this was ever really a concern. Google and device manufacturers already have ways of publishing non-GPL portions of a complete Android distribution.

Google is the owner of Fuchsia's copyrights. Licensing doesn't matter for them.

It might not matter to Google, but it would definitely matter to the hardware vendors who'd write drivers and ship devices with Fuchsia.

So many GPL violations in the Android world currently

IMO the fact there are so many GPL violations just goes to show they don't care about the GPL.