You are in the significant minority. Most people, don't have a clue. Even experienced runners. They set themselves a goal, try and run a lot of goal pace, can't, then still run goal pace. Have no chance on race day, but still run goal pace. Wonder why it didn't go well.
This is a huge cross section of hobby runners. It's also the problem with a lot of training plans, you work towards a goal that in all likelihood, was arbitrary, and there's no real way of telling if you'll make it in some random 12 week roll of the dice.
Someone posted about sirpoc's progress. 3 separate occasions he has gone 3-4 months with zero progress but didn't worry about it. That could be a whole traditional block, where it was assumed "it didn't work". Then goes on to try something else. But no, just kept going knowing the science backs up the fact he will likely just continue to get better, assuming he hasn't reached diminishing returns. Which is unlikely on this method, again not for all of us, but the vast majority.
People are just too focused on short term outcomes. If you are willing to train like this , for a year or more and stay consistent, just about everyone will improve. I saw someone moan they "only" ran 2:31 in a marathon the other day as if it was a bad thing, almost a km ahead of their previous finish. What more to people actually want? The whole thing is cleverly linked so there will be no surprises on race day, but nobody is also promising miracles.
This method is simple and effective, but also has a few more layers to it that the book has exposed. Like the fact if you train consistently, race day will not be a suprise. Whether you like the reality of that or not, is up to you. But literally EVERYTHING is in this method to make you train better, recover better, be more disciplined but also race better. The whole thing is outcome and performance focused. Having read the fantastic book, I fear without that the sport (which is better for having an out of the box thinker) would lose sirpoc. He's certainly not in it because he loves running. I also think that's refreshing, a reminder that you really don't have to love running to embrace it.
Of course there will be people who already know this, but they are in the huge minority and your average hobby jogger is unlikely to really understand this stuff, hence if you have them one training book or plan to follow, this is almost certainly the best one for most people. I think we forget how we are fighting two things:
The horrible and horrific intensity over volume boom of the early 2000s and the even worse advice you get all over social media from self appointed coaches.
I'm one of the coaches who can see how this can get my business booming, rather than putting me out of a job. The performances of my clients already have meant I'm getting more and more club mates, friends, family etc. from such people who want that extra guidance.