Some of what you are claiming is false. Most chess AIs for example can identify almost every opening move in existence. Something no human can do. That's a type of position evaluation, and a good starting point for further research. No free coach is going to sit for 4 hours straight, 5 days a week, playing thousands of games exploring variations of a particular opening. That kind of self-study will definitely help you become a better player. Humans just aren't willing to be that opponent, especially to a beginner and not for free.

Also I'm not claiming you can learn quicker by exclusively using AI. I'm claiming you can learn quicker by adding it to your set of tools. Human coaches and books are other tools you can or should use.

Even the some of the best chess players in the world are now using AI opponents to explore new ideas.