Or at least try to find the reason why it's a Dps loss, i seriously doubt that it is some kind of obscure reason that only the Simcraft Dev's can think off.
If you find a solid reason why this Set bonus is a Dps Loss then i will agree with you, but the Dps Loss caused by this Set bonus must have a reason, and that is the thing i want to know.
EM? Sit's on a 1:30 Minute CD, but i strongly doubt that you even use it in BiS Gear.
Berserking? That applies only for a single Race, which isn't that much ahead of Orc and considering that the Meta Gem will have a decent Uptime, you can line up Ascendance with this Proc.
Fire Elemental? FE nor Ascendance do affect each other, lining them up with Procs is quite difficult as well because of the RPPM mechanic.
Engi Enchant? With a 1min CD it's quite flexible with lining it up without losing a serious amount of Procs.
An increased Uptime of Ascendance increases the probability of covering the same time as a random Trinket Proc does.