If you would like a serious discussion here goes. In order, my father played college golf at the University of Minnesota and was a coach. If that doesn't fit the definition of having lessons...so be it.
What is your definition of technical data? Is it going to simulators and standing on pressure plates and looking at numbers? Is it investing heavily in trainer equipment? I'll go with you on range sessions, as that is where a swing will be developed.
If you require more data to improve your game and instruction, more power to you. I teach in a classical way with the philosophy of the more complicated you try to make something, the more things that can go wrong, and the more bad golf you will experience. My views may sound too simple at times, but I've never been a great believer in complicating an issue unnecessarily. "If you have the task of giving first aid, it is a mistake studying up on open heart surgery."
However if something works, great. Go with it.
A lot of instructional talk today comes out of a couple hundred unusually gifted and highly trained pros and rarely contributes to the game of the weekend golfer.
To a beginning golfer, I try to get them to follow techniques that Sam Snead taught. For reference, Sam Snead taught my father's college coach, who instructed my father, who in turn instructed me. Call me biased, it's what I know and has proven fruitful for my instruction and students' success. I believe in focusing on technique more than data analysis. A cause based instructional method of analysis does an awesome job of explaining the golf swing, but it doesn't make a good game happen. Sound individualized, results based technique instruction does teach a good game and keeps explanations down to a minimum.
So I understand your "feel ain't real" thought, but if a technique works (even if what is "felt" isn't what is actually happening), does it really matter why to the average golfer who is successful, probably not.
I do teach my students timing and rhythm as I want them to build a swing that is free and easy, focusing on smooth movements not torqued mechanical motions. I want them to physically be able to use their swing into their old age without having to constantly tweak and mess with it. That does not mean avoiding data, it simply means not getting hung up on it. This topic is on instruction and in my experience over the years many of the instructors I listen to on the course teach in a way where they flood a student with so many swing thoughts of angles etc..., you can see the smoke coming out of the poor player's ears. I see this as too much technical instruction.