Can we consider not having minion damage trigger the new "guardian" keystone?

I've been playing around with the new runes reforged a lot lately, and while I am largely liking the new system, one thing I have noticed that I'm not too fond of is the fact that one of the new keystones in the perseverance tree, guardian, seems to be triggered by incidental things like minion damage.

As a reminder, the new keystone guardian does the following: "Guard allies you cast spells on and those that are very nearby. If you or a guarded ally would take damage, you're both hasted and granted a shield."

This ability has a 45 second cooldown, and so to me, it feels pretty bad to see it blown when you or an ally take one caster minion attack. If this is known to riot and it is the intended functionality of this keystone then ok, it's not something that I absolutely can't live with, but I want to at least make sure that this has been considered in the testing of this new rune.