Debatable. But i always ph my nutrient solution. If i was growing in living organic supersoil and feeding only water i might not bother as long as the alkalinity wasnt too high. But mixing nutrient solution, yeah i'd ph it, organic or not.
Right now im feeding
Earth juice and after 2 days of bubbling it lands at 7.2ph, i add a small splash of grow or bloom nutes to it and it drops the ph back to 6.2-6.4 before i feed it to the plants. I dont use ph adjusters to adjust the ph.
If it was low everytime instead of high Id pretreat my water with more potassium silicate to increase the ph.