This is pretty much the same stance many people hold about Pulumi and I never found it compelling there either. In that product's case, the core languages for writing expressions are the languages that IMO have some of the most dysfunctional dependency-management stories in industry (Python, Node/JS/TS, Golang).

Since part of the sales pitch of using a general lang is emphasis on code reuse, it rings kind of hollow for me there, and here too.