Turn-based combat system now is some sort of a bad trend. That is not because many "indie" developers don't make enough efforts to calculate proper mechanics. They not lazy, quite the opposite. It because they just don't have money to hire additional programmers to make real-time combat system. In case of T:ToN limited budget was the real issue and they cut out too many good ideas. But Larian have all resources they need to make game mechanics well.
Bad trend? What is this trend you are talking about?
T:ToN was one of the most successful kickstarters ever when it comes to games, with 4x the budget of Original Sin 1, and 2x the budget of Original Sin 2. T:ToN is just a bad game, the budget was not the problem. I highly doubt RTwP is a huge tax to the budget if any, compared to turnbased.