MAT which is medication assisted treatment, often called harm reduction, is a proven successful method of entering sobriety for many many people. Treatments like suboxone or methadone used to get off opiates can be successful. I could think CBD or even (gulp) California sobriety can fall into this category.
For many of us the goal is to eliminate anything that takes us out of the present moment. But no 2 recoveries are the same and what works for some won’t work for others. If CBD with .9% thc helps you stop killing yourself with booze and drugs, do your thing.