Nearly every global outage at Google has looked vaguely like this. I.e. a bespoke system that rapidly deploys configs globally gets a bad config.

All the standard tools for binary rollouts and config pushes will typically do some kind of gradual rollout.

In some ways Google Cloud had actually greatly improved the situation since a bunch of global systems were forced to become regional and/or become much more reliable. Google also used to have short global outages that weren't publicly remarked on (at the time, if you couldn't connect to Google, you assumed your own ISP was broken), so this event wasn't as rare as you might think. Overall I don't think there is a worsening trend unless someone has a spreadsheet of incidents proving otherwise.

[I was an SRE at Google several years ago]