I do not agree with you. PaaS abstraction becomes super leaky on top kubernetes as you start solving real world problems.

That is one the first mistakes newly formed platform teams in a company makes, abstracting infrastructure. Happy flow of PaaS on kubernetes is great. It is magical to certain extent. But negative flows is a really mess. The customer no clue why certain things do not work and you as a engineer had no clue that this would have happened.

Secondly, the amount breaking changes you have deal with as a result of abstraction is crazy. People pushing code does not care. It is basically moving complexity from one place to another.