Buff stable aspect

Stable aspect was buffed from 10 to 12 to 14% currently. Personally, I loved the idea of using it in a pure lightning sorc play that doesn’t focus purely on arc lash / unstable currents. However, I’m curious as to why are the numbers for this so low compared to other damage aspects. Its comparably worse % wise than the tempers which allow a dual cast of a specific spell (which would be at max level)… the randomness does appeal to me somewhat, but the proc rate feels really low when using it and the damage pales greatly in comparison with almost every other aspect out there.

I was wondering what is the downside of bumping this up to say 30% or even 40%. It is going to be far from overpowered damage wise compared to other aspects (most of the skills cast will be at ‘zero’ or 1 skill point, and unstable currents with its 25% attack speed bump is still of good value as an oh-crap ability.