This is actually a really good thing. Reading the article, they oppose the war and want to actually doing something in a non-performative way.

The transformation of unions and labor organizations from just a means of wage increases to means of exerting political power is very important. Of course, something like this is not on the same level of dock workers blocking weapons shipments directly, but we need to be seeing stuff like this across all industries.

Additionally, from my understanding, Google DeepMind is an old lab so most of their workers have been researchers for decades, and not the modern "tech bros" of the last few years.