> This + k8s magic that seem to make thing coupled tighter.
I think nobody really talks about this, but unless you have a docker-compose.yml that includes everything you need for local development, it's increasingly more likely that you'll end up coupling things to Kubernetes to such a degree that running without it (and its abstractions) will become more effort than a person can muster.
So while people try to create services that are decoupled from one another, they end up instead coupling them to Kubernetes concepts and a service mesh, service discovery, configuration and secret management mechanisms, persistent storage abstractions and so on.
Which you can obviously do if you want to, but which might make running things locally in a minimalistic fashion that much more complex.
It's the same as with for example using a web server as a reverse proxy for my applications and ending up putting some logic in there (e.g. route rewrites, headers etc.) and then realizing that I must also run a similar web server locally for 1:1 compatibility because something like Vue dev server proxy to the locally running API won't be able to give me all that.