I'm go to go with the theory that each of us is different - meaning different foods, different factors, different medicines work for different people. Personally, I am able to each vegetables and fruit. (And I put tomato sauce on my spaghetti.) Raw veggies don't like me much, but I can do salads - just know my output will be higher. I watch my sugar because that will trigger pouchitis in me. I take Align every morning and am on Entyvio, Imuran, and Budensonide to keep my pouch happy. I take Amitriptyline and Lomotil at night to help me sleep and not let my pouch keep me awake with urges to go. These work for me. I don't feel like I live in the bathroom anymore.
It has taken a long time to come up with this formula that is working for my pouch. My advise is to find a good GI who is willing to work with you to find what will make your pouch work the best for you. Maybe it will be long term antibiotics or a biologic. Don't be afraid to try something different and see what happens.
Just my opinion. Hope this helps