Typical issue of the corportate programming world being a hivemind. Just because many big tech companies use it you can't blindly implement it for your 5 developer team.

And it for sure has its usecases - like if you run something with constant load swings that does n't need to be 100 percent accurate like Youtube it makes sense. You can have a service for searches, comments, transcoding, recommendations, ... which all scale independently trading in some accuracy. Like when you post a comment another person doesn't need to see it within 1 second on another comment service instance.