Bug or clever feature? Heal Area and Peace and Harmony

After playing a few rounds PvP with a few different monk healing builds, I came to suprise that Peace and Harmony is canceled by a Heal Area Spell. After reading the Spell discription, the effect was clear to explain.

Peace and Harmony ends if a none ally is targeted, which could be happening with Heal Area.

Strange fact.. cancels a spell out of any P&H monk build.

Or should that be fixed?

P&H is canceled if you cast a spell that doesn't target an ally. This includes spells that target enemies and spells without a target [like Heal Area, Heal Party, and Divine Boon].

peace and harmony is just bad lol. Its seemed nice when i got it but its just not on par with other energy management skills esepcially elite ones . Its Plus 1 pip which compared to offering is crap. Plus it canceling out makes it even worse and the fact that its an enchant thats easily removed.