It looks like the subject was brought up again with a different approach, but I'm not smart enough to understand how its different or the implication of the 5 commits being merged as of 2 days ago:
As pointed out up-thread: it was closed in favor of an alternative approach that kept the setting but changed the default.
You might have also missed that in the middle the project published a statement clarifying its approach to the default policy behavior for relay:
https://bitcoincore.org/en/2025/06/06/relay-statement/