Yes I agree with this, and this is the point I am making in another thread here about menopausal training.
Maybe the ‘bit of everything approach’ with some sweetspot, threshold and VO2 scattered about isn’t actually the best for everyone. Maybe some people wil work/improve better on dedicated blocks of a certain zone or with a change in the zone distribution. I do not believe, at the moment, the system truly analyses that or where you are in your training.
I also hate the fact that it is always assumed that only those at the pointy end who have years and years of structured training under their belt are allowed to think outside the box with their training and zone set up. It drives me crazy actually, that is it assumed that, if you haven’t trained with power or with structure then you are nowhere near your genetic potential and you have to ‘continue your schooling’ the standard route. It is possible that people can train and work hard without structure, and get close to their metabolic potential doing so. It is also possible that people who never train with structure could benefit from a different stimulus than the standard ‘kitchen sink’ type of base-build-specialty.