Practically, I agree with you but for people planning on skirting very close “on the map" do they know what the printing tolerances are? 1:500,000 means half a mile is less than 2mm.
Quite honestly worrying about "printing tolerances" on the map is a just a bit too pedantic IMHO and really isn't an issue and I would bet you are the first to use that as an argument?. As for the ANO being definitive, yes of course it is, but try taking it with you and navigating with it.
I am with all those who understand and accept that there is a printed boundary and that is definitive, outside it OK, it matters not one jot how close you are. Others at an ATC level may argue you shouldn't but sorry tough thats the line between naughty boy & good boy.
By the same token, do you know the tolerances for the lines on a consol screen which is used for tracking you relative to the map?
My stock phrase is "Don't make it complicated"