You raise a good point.
Being fit or experienced enough to handle the training load does take a few years. Also, the type of events you are training for obviously dictates the training.
For a lot of people they have a day of intervals and some kind of WC mid-week, non? Then a race on most weekends? Isn't this pretty much the norm?
Maybe I'm reading the OP wrong. It just seemed intensity was thrown out the window mid week in favour of recovery. For certain phases in a training cycle, or during tapers/peeks this could be the case. Or for older riders (who need much more recovery) this might also be reasonable advice.
In the end I can't speak for anyone but myself and what works for me. Based on trail and error, if I don't get a day if intervals and a training race once a week I just never have any snap on race day. Our weekend rides are also usually hammerfests and can be harder than some races.
YMMV.