The great point that the OP misses here is that in most of the time AGPL is not used to be enforceable, but is a mechanism to make sure that an user that is keeping the code closed is non-compliant.

Any due diligence for a M&A or tech legal screening that finds a closed piece of code with AGPL will raise a red flag. In some of the cases that I saw the assessment was that the code base was non-compliant and this applied a huge discount.