The EU has threatened massive fines for creating features not available to competitors. And the EU refuses to vet a feature officially in advance.
Under such conditions, how would you distinguish being petty from complying with the law?
The EU probably imagined the outcome would be: change your business practices entirely for the EU, and make all new features open to all, immediately, perpetually, everywhere.
But that's not the norm for the vast majority of companies, for a variety of sensible reasons. Given that it's actually hard to do that, witholding new features until you're told "yes this is ok" is a rational response to the law.