Right of first refusal WAS given to trademark holders. .google is owned by Google, not by some random domain squatter (whatever gave you that idea?). Trademark vetting is part of the ICANN application process for a new gTLD. No one else other than Google would've been allowed to have the .google gTLD. There are plenty of brand name gTLDs that were never delegated simply because that company didn't want it, and no one else could have it.