Upcoming Katana & Shortspear nerf in 2.9

So its been known now for a while since Korea got 2.9 that the healing power on shortspears and magic attack on katanas are getting a 5% nerf.

I sort of understand the shortspear nerf as self healing classes got a bit out of control but im not so sure the katana deserves a nerf as theres not really any "OP" melee/mage classes (that im aware of)

Seems strange that the katana got grouped with the shortspear for this nerf.

Opinions?