why not introduce more MR items/buff the existing ones?

with the new changes to AP items, mages are going to be doing a STUPID amount of damage. and when i say stupid, i mean STUPID amount of damage.

why not increase MR on banshee's and spirit visage, and introduce some more MR items that aren't pointless for toplaners.

it doesn't hurt anyone tbh. people who choose to build it wont be worried about being gibbed through their defenses(which to be honest already happens unless you're the beefiest of tanks), and people who don't build it will still be vulnerable(ADCS, other AP mids, some junglers.)