I was expecting them to -not- increase DoT damage. This isn't crying that they didn't buff enough - this is saying that they buffed the wrong things. The total pps gain here is about 6.66. A little over 4 of that comes from DoT damage increases which were not needed.
They could have, for instance, added potency to the initial hit damage of Windbite and Venomous Bite. They could have consolidated Flaming Arrow's damage into 15s or 24s to make it lose less to boss movement. They could have, perhaps, done something a bit wacky like have Sidewinder apply any missing DoTs that it doesn't get damage for. None of these things would have increased Bard's dummy damage by any notable margin, but they would have had real impacts on output in actual combat.
But instead of aiming their buffs at areas of need, SE does this wholesale buff-everything approach, which creates more potential problems down the road (threat to MCH viability) than it actually solves (BRD still badly lacks resilience to mechanics). It's a very lazy, "here, now stop whining and go away" buff that reflects a complete failure to understand the nuances of the classes involved.