I think therein is half the issue. Yes, it could be flagged, if the staff running the campaign actually had that power. But they don't.
The AL staff is in the unenviable position of being the 'front' for the campaign, but they have very, very little actual say in how it's operated when it comes to rules, rulings, errata, etc. They don't even have any direct control over what goes in the AL Player's Guide each season; they best they can do is make a request to WotC to have something changed, and then cross their fingers that it'll be in the next version that WotC publishes.
if WotC had dedicated people running the campaign, or alternatively, if WotC gave actual legitimate control of the campaign over to the AL staff, things could (and likely would) operate much differently. But alas, such is not the case, nor is it likely to be under the current way things are operating.
But yeah, this is all stuff that's been argued many many times before over the last year-and-a-half.