Honestly this is a bad change. This promotes faster games and many classes got indirectly buffed by this change. So many mini-reworks made sure that everyone has some sort of CC now. You can get stunlocked for 10 seconds and it shows how painful it can get if you don't have MP enough for purify.

Warrior got buffed by this, Paladin, Ninja with double stuns. They will just wait if you purify so resilience goes off and then stun again.
There are also many broken classes like Viper / Picto that are insane now with their burst and healing. This thing needs adjustment.

But I doubt devs can do anything good. They already told us that WE are the ones testing their features and functions. So we are testing the purify changes.