"X%" chance of Devotion procs based on the skill they're put on

One detail that I noticed is that certain Devotion skills that can be applied in offensive skills that have a cooldown will get a bonus on their proc chance. That’s a good thing to compensate the fact you are putting a Devotion skill on a skill that will not spam that often.

But what I don’t get is why this is not the case when you apply it to skills that are already on proc like Markovian’s Advantage or Feral Hunger. I think Devotion procs should be 100% when applied to skills like these, they have lower chances already, and since the devotions have their own cooldowns you will not spam them that often either.

Also, not a necessary suggestion, but since we are going to see more offensive auras in the expansion, I think it could be cool to have the option to apply offensive Devotions on these auras. With a reduced “X%” chance to balance things out of course (maybe a standard 5% to all devotions if used that way), since you will be hitting with them more often than with regular skills.