Mechanically, its very easy to manage. At its least egregious it’s 200gp per combat/per character you buff. The last campaign I ran ended at 10th and the PCs only had that kind of money for the last 2 sessions, but to each their own.
Currently, AL gives out Treasure points and very little money. You can turn your TP into gold, but that's TP you would otherwise be saving for magic items. Even at T3, this would be expensive. A DM who dos not desire this would have anti-magic zones turn the buffs off; I can think of three modules I have played with such right off the top of my head. Just add one here and there and the players would never know....and when they go broke, it's not a problem.
Anything that's 'several classes loose core functionality' tends to be irritating, especially with fighting involved. If it's a puzzle room that has to be actually solved rather than bullshit-magic'd away, that's a bit irritating, but less lethal, but flat-out eliminating large chunks of a character sheet is rather poor form.