[pm90]

I think the biggest “win” with abstractions is that it makes it easier for infra teams to update underlying concretions (is that a word? the concrete version of the abstraction) without having to dig deep into the codebase.

e.g. with kubernetes, if you have the actual manifests defined by every team, it is a pain to do any sort of k8s updates. With a simple abstraction where teams only define the things they are interested in configuring (eg helm values), that simplifies this task a lot.