What I did is absolutely value betting. I saw odds where I thought the chances of winning were higher than the numbers given by the casino and I bet them.
Nowhere in the terms of conditions does it say that value betting is against the rules, and if they were to explicitly say that they would look fucking ridiculous to any semi-competent sports bettor looking to sign up to a new site.
The terms are deliberately vague so they can just steal from people - that is the problem.
At any normal sports book value betting and hedging might get you flagged as a sharp bettor and limited, but it would never result in a confiscation of funds. This is just a blatant robbery.