If the question was about link to flagging history disappearing from profile, like this one: https://meta.stackexchange.com/questions/119127/flag-history-disappears-from-profile-by-irrelevant-condition-weight-100 then I would be all for having the behavior such that users with non-empty flagging history always see that link.
However in its current wording question reads wider than that. As far as I can tell it implies a suggestion for history link to appear even before user submits their first flag:
a link to the user's flagging history always be available from his/her profile.
I am rather a newbie here (as of now my membership at SO is about 6x shorter than yours) that's why I clearly recall that at first glance profile page felt quite complicated - even without flagging history, review tab etc.
Back then, stuff like flagging history page would mean to me nothing more than yet another cryptic gadget, making matters only more complicated.
It is nice to see what changes are accepted/aren't and read one's history even if the current weight is 100 (making the score invisible).
I think it is nice only to those having at least some knowledge about flagging. For a typical newbie this is not the case I'm afraid.