I think with the 4% buff and the 4 set boomkin's will do fine. We will never get crazy top parses because our spec has very little RNG, which I actually like. Boomkin damage is actually 'okay' right now. We are far from the best but not everyone can be.
Bigger issues imo are how much movement impedes our dps and the clunky aoe. But like others said we probably have to wait for the next expansion for that.
I play EU, so won't get to try the changes until tomorrow. Anyone in the US care to chime in with their impressions on ST/AoE in 7.1.5?