There is no way you'd get a "google" domain under any extension but even if you register a domain with "google" + something else you're going to lose it in a UDRP anyway.
It's possible that google and other major brand names don't have to register every extension, the names are just reserved for them alone, should they want them.
There was a dude a while back who registered google.com and gave it back when asked. I figured I might be able to do that and get a cool story to tell out of it.
He never registered google.com. google.com is hard-locked at the registry level by Verisign and has very high security manual safeguards around any changes that are made to it.
There was a temporary bug in Google Domains that made it appear as if he had bought google.com, but he had not.
Oh, this is available to anyone with a .com using a major registrar. I had misunderstood this to be some special feature only available to the domains that make up massive amounts of internet traffic like google.com.
There is likely to be even more scrutiny placed on any changes to domain names that employees of Verisign immediately recognize, such as "google.com". I imagine that would have to go through a very high level person at Verisign. It's in everyone's vested best interests here to not screw up something so visible as that.
The guy in the article was able to do it recently. Why not the person you were replying to? (Besides the fact that now the guy in the article has done them all)
It's possible that google and other major brand names don't have to register every extension, the names are just reserved for them alone, should they want them.