Agreed there is some better stuff for general touring.
However, I think with a racing route there has to be some level of accessibility for riders of different abilities, especially with the format of the race, which is why there are some bits some may consider boring, long sections of road etc
It looks like a pretty slapdash route, loads of long tarmac stretches and misses out on some real lovely off-road biking. Much better ones to tour on