Google do not use their Visual AI in Merchant Centre. This is allowing product violations getting into google without anything being triggered. Which is why having no product violations cannot be viewed as everything in your feed is correct.
Google compliant feeds are often full of errors. In audits, results show typically 40% of fields in feeds have incorrect data. Saying something is a t-shirt when it is a pair of sunglasses won’t show as an error, but it’s going to cause you massive problems trying to sell your sunglasses against T-shirt search queries.