Unfrotunately all a PTR will function in practice is an easy way to clear all the fights, then claim world firsts in live

that's the most that would come of it most likely

also while autoattacks were 20% of your damage after the barrage change wanderers was still better - because of the increased action damage trait

20% extra damage on actions (which is not autoattack)
the way damage stacks in this game wanderers was really 20% x 20% = 44% so 24% or pretty much higher than autos
but all the bard bitching got it buffed so Machinists get to be op as balls, thanks