Word.

The entire sport of cycling is going through a transformative period and not for the better. As a market sector, cycling is down and participation in events is down especially racing. Bike forum posting is down. One way to counteract that trend is to provide more value and better content along with constructive help.

I would like to be constructive but I do not see how. OP, you are starting from a grossly negative premise about what others offer and critique in a very negative fashion what generally cyclists like and works. Cyclists like Zwift. Cyclists like software applicationss. Cyclists like subscription software. Cyclists like Peloton. Cyclists like high end spin studios. Cyclists like coaches with customized plans. And etc, etc. etc.

In general, cyclists do not like to ride on the trainer just to get "more fit". They want to be engaged in some way that makes indoor trainer work at home palatable and fun.

I would love to see you come up with something unique and more engaging that adds value to an indoor workout.

It is one thing to share what one does and get feedback or provide feedback to someone who is asking for help based upon personal experience and results. It is another to propose a better solution without any statement of credentials, independent studies or thesis such as your own PhD thesis or personal results and / or that of a group of athletes under ones control.