You make it sound like translating an offline battle system into a single player experience seamlessly is easy, plus adding the incredibly flexible gambit system. For real, games dont work in cut and paste forms like you make it sound like. It was an incredible achievement and theres a reason why many games will copy this format from now on.
I understand differences in taste. I fucking hate Tomb Raider but I will still mark it as one of the most important games of the 90's, even in its game design facet it achieved tremendous things. In order to truly judge games, you need to separate yourself from emotional aspects and judge the p[ackage for the sum of its parts, really.