No but what you are overlooking is the obvious...
As a BM - What is your main damage shot... autoshots... what does ArP benefit, autoshots. Whats your second highest damaging shot as BM... Steady shot... again ArP benefits those shots.
All your pet attacks are physical ... meaning ArP would be insanely valuable for your pet, unless you sit with a worthless spirit beast. Yes ArP is pretty useless if you are a survival hunter since most of your damage comes from Explosive shot / firedamage.
The two piece set bonus would be insanely valuable for a BM since in order for you to do 10% more damage on your steadies, you need serpent up... now having serpent up the whole time and its ticking with possible crits, is nothing to sneeze at. Now 10% damage boost on a shot thats directly affected by ArP is pretty big stuff. I really suggest you have a look at ArP again.
At higher gear levels, it overtakes agility as no1 favourable stat to aim for.
MM hunters like myself are seeing insane benefits from it since my no1 damaging shot is autoshot. Having grim toll proc with very high ArP stats = shheeeewww what da hell just happened there ?
Ok as for the whole macro one button bashing thing... you clearly have it out of context. The only reason the Macro made for one button mashing was because of class mechanics. The macro was purely intented to help with autoshot clipping. That has been removed... Anyone raiding ulduar would know just how pet unfriendly it can be... so micro management of your pet would become a core part of your dps. You become more and more reliant on your pet once you start doing hardmodes... having your pet's survivability up on bosses like thorim hardmode becomes insanely valuable when you need abilities like masters call to get you out of the Siff's ice storms.
I found BM a lot more intensive since you have to think for your pet and yourself. In a instance like Ulduar it would be very very tricky imo.