Well, as sad as it is, such advice is often applicable to new projects when you still have runway for your own decisions.

For mostly political reasons, if you are onboarded to a team with a billion microservices and a lot of fanciness, it's unlikely that you will ever get approval or time to introduce simplicity. Or maybe I just got corrupted myself by the reality where I have to work now.

There is definitely a wood for the trees issue at bigger companies. I doubt there is an architect who understands the full system to see how to simplify it. Hard to even know what "simpler" looks like.