Agree 100%. Plus Helm runs against a basic tenet of microservices (the usual architecture for the deployed apps in k8s these days). People use to bundle services together when using Helm and the like which, in time, couples services together.
In my opinion, for sure. There's a balance between "too coupled" and "too de-coupled" that should be stricken rather than too far on either side. It's good to say that this is also contextual; some projects may be fine with either more or less coupling than others, and that's OK.