This is my big fear for destruction at the moment. I hope Blizz don't see the numbers as enough of an issue to decide to nerf the spec, as I genuinely think we aren't really ahead of other classes on how much USEFUL dps we bring to a fight. If they nerf us to make the numbers look equal with other classes while we are still padding damage with shadowburn, it basically means we'd be doing less dps than other classes in the things that really matter.
Personally I'd always stick with PBI. RPPM is frustrating with destro as you just know you'll get your big procs when you're doing something negligible or when there's heavy movement and thus you can't get any chaos bolts in.