#2 - Feb. 14, 2016, 11:51 a.m.
Aye, thanks to you and a few other community members for helping identify that bug. Indeed, we're going to wait until 7.0 to fix it.
But we're going to go a step further, as well. Warning, the following is super techy. You do not need to understand it, it's just for the theorycrafters.
Conceptually, the intended difference between random chance procs and On-Use effects should be that the chance ones are unreliable, whereas the On-Use ones are active when you want them to. This extra proc chance on the pull (which you identified is actually stronger than intended) goes against that rather significantly, ensuring that the random chance ones are active when you most want them to, on the pull.
As such, we're going to change the functionality of RPPM procs in Legion. The TimeSinceLastProcSuccess and TimeSinceLastProcAttempt will both be set to 0 on the start of boss encounters, instead of the 120 and 10 respectively that it currently is. This will significantly affect the overall DPS value of these trinkets, and we'll adjust tuning on all trinkets to account for this change.