I’m Norwegian, so I did a little digging for you.
This is the same guy that hosts the Norwegian site “wattkoden.no” (translates to: “The watt code”). His a former biathlon athlete now working in the field of chiropractic. He’s a real person and not a company front. I also found some articles by him on some Norwegian training blogs.
So he’s not a starving student. His LinkedIn states his a Doctor of Medicin. More of an Internet coach on the side perhaps?
His Norwegian site has been up for some years. I remember stumbling over it back in 2016 or so (and it wasn’t new then). That site promotes the same training regime and double as a training diary if I remember correctly. The site also has a free ebook “6 steps for higher FTP” (translated from Norwegian) on the subject. It’s in Norwegian, and actually was a bit interesting back then. Probably because it was an easy read and broke down the fundamentals for a guy who just bought his first powermeter. The book was of course a channel in to his training programs. Same as the email you describe.
The site you refer to looks like a leap in to the international market. Looks like the next iteration.
Disclaimer: I have never used any of his products, so I wouldn’t know about the quality of these training programs.
I don’t think this is BS, just an other way of approaching the subject of training. If it’s a better approach… I don’t know. If the plans easily integrates with Trainerroad… can’t say.
The ebook was a nice read, but nothing you can’t read from free articles on training peaks. I would say my knowledge about training with power grew way faster with TR podcasts and reading discussions on this forum.
Hope som others out here can shed some light on the actual training plans and their experience.