The only way you would not be able to upgrade something and then later become able to is if you are waiting on level restrictions or to find the affix. Both of these things seem like they would be actively at the forefront of your mind.
Farming for affixes is something people may do if they are looking for the +skill affixes or other rare ones.
I think as a toggleable “Remind me when I can craft on this” the suggestion seems fine, somewhat useless in end-game (still relevant up to like level 76 or so.) Doubt it would be very high on the priority list though.