I'm not the least bit interested in "real world experience" because what that adds up to is "my pool is clear so it must work". That's an opinion, not knowledge. I have seen things far more scientifically laughable than UV and Ozone (both of which have their uses, but not in a residential outdoor pool) get rave reviews by people. People dump random things in their pools all the time and whatever the last thing they added before it cleared up becomes the miracle product that they tell everyone about. So no, if someone is not knowledgeable about water chemistry then their experience does not count as "fact", it counts as opinion.
Again, you have way too much trust in your pool builder. I cannot believe that someone who has been here more than a couple of months hasn't seen just how little the "professionals" tend to know. If you saw what goes in to managing a pool on a route compared to what TFP users do, you'd know why putting absolute trust in their title makes very literally laugh out loud.
As for everything coming back to TFP: we have plenty of data sources we can offer. Verifiable, peer reviewed, all that good stuff. So far you've offered opinions, sales pitches, and marketing material and expect us to treat it as if it were on the same level. Not going to happen.