Marijuana is a PH tolerant plant. Don't add weird chemicals to balance PH. PHing is for noobs
I think this is a simplistic way to look at pH. All organisms are impacted by changes in pH, so the more you can watch it, the more you can use this information to your advantage.
At the same time, I see the argument about not wanting to screw with plant biology.
I say, if you have the brains and the time for it, see what plant nutrients can do, and if not, take your chances without.