For me it sounds like something that could be worked on, maybe it is a good idea or it is horrible, it feels like it will be a little wacka mole situation.
if they implent it, people will make scripts to switch armor on and off.
Then they need to add a equipment changing animation so that you need to dedicate to the armor you have or those with scripts ready will get the upper hand.
Heavy armor will then become completely useless, so i guess the combat will be more range oriented?
So maybe they add something to block ranged attacks if used at the right timing?
Speed oriented gilding maybe?
Speed modifying equipment?
I do think there could be a balance somewhere and that it is worth looking in to, just saying.