Disregarding all the flaws macros have and assume they work perfectly and can be queued like normal abilities would be, there's still one glaring question: why?

You're effectively shrinking the job to 6(?) buttons, but to what end? I would understand the usage of this kind of system if you have a legitimate disability that say limits your finger movement, but to a normal person pressing those few extra buttons shouldn't prove to be a challenge at all. Who is this guide for? You've bound abilities that have 30-90 seconds of cooldown (except for PB). Your macros are effectively saving the user 2-3 button presses per minute. Is that really worth the "automation" and dumbing down the gameplay at the cost of DPS?

As for the actual state of the macros, what if you want to for example save Bloodbath or any offensive cooldown for when you actually NEED them? There are plenty of times where you'd want to hold on to your buffs rather than popping them immediately as they come up, same for OGCDs albeit more situationally.