The issue with damages buff is that they depend on the skill of your party in order to be decent.
Give Trick Attack to a pug group and more often than not the difference will not be that huge, on the opposite, give Trick attack to a decent and organized party and they'll squeeze the most out of it.

it's the same reason as to why peoples thought that dancer was bad at the start of ShB even with rdps. But as time went on and peoples became better and dancer was then one of the best physical ranged you could ask for when trying to do a speedkill.

That imo is why devs are kinda afraid to increase/decrease some party buffs. Because if you raise it in order to be better for the average green parser, then suddenly it becomes amazing and OP for the top-end group, which can be an issue because then it demands to rebalance new encounters around that in order for them to still be challenging... Which nullifies the whole point of the previous buffs.