My water is pH'd to 8.2 and ranges from 7.4-8.4 out of the tap. I've been using it in soil for decades without adjusting pH. Auto's, photo's, houseplants, vegetables, herbs, etc...
I only pH in coco or hydro. I never even knew anyone bothered in soil until I started reading about it on cannabis forums. Even then I never started doing it. Cannabis growers tend to overcomplicate things and do things that are unnecessary. Any decent soil is going to have buffering agents in it that will handle the pH.