Destruction already got buffed, but you do not realize it - it's called a Potion of Prolonged Power.
Anyway, it would be nice if people would cut the crap and concentrate on actual mathing out the benefit of boosted Supremacy vs Service.
I claim it is a clear winner now, but I want to make sure I am not missing something, so far the only thing is pet twisting you are expected to do once per encounter, which is inconsequential.
My rough math gives Supremacy around 10k DPS advantage over Service for my character in pure ST situation at default simcraft parameters for Patchwerk encounter. That's a decent gap now, as opposed to previously it being just very tiny bit better.