People don't focus on that because with the state the game is currently, it's more of a QoL issue. While in fact it's a fundamental issue of the game. It's an RPG and the character advancement matters a lot. I don't know why Bioware thought they could get away with such a simplistic (and copy pasted from old games) approach. I mean, they already natively had a much better option, which is feats, and they could implement it in the game in a way that it's fun and highly customizable.
Hell, even WoW itself realized that talent trees suck and removed them, even though it had way better talent trees than SW:TOR, but SW:TOR is kinda stuck in vanilla WOW skill tree mentality (really bad, cookie cutter, no thought needed, illusion of choice).