Not sure of my rating, but pretty hard for anyone to rate it outside of a 6-9.
To the posters speaking ill of the Denmark stages: I agree, however, a grand tour is meant to have boring stages, and these stages don't necessarily harm the racing (on the relevant stages) at all. Fans mostly remember GT's for one or two, maybe three or four stages. It's how good those best stages are which tends to sort the favourite GT's from the not so loved.
Which is why many recall the 2011 Tour and 2016 Giro fondly.
I think that personal bias has to come into this, at least to some extent. My favourite GC rider was Primoz Roglic, and after stage 5 (and stage 11 to a lesser degree) I simply didn't have as much emotional interest in the outcome of the destination of the yellow jersey. And I am far from being the biggest Roglic fan boy around here.
Having said that, there was still a sense of great drama when Pogacar popped on Granon. Perhaps it was kind of like when Buster Douglas knocked out Mike Tyson. Only in Tadej's case, he did get up from the canvas, albeit slowly. This made it slightly less dramatic than Tyson, whilst also providing hope that the "heavyweight champion of the wooorld" would somehow manage to recover and deliver a knock out blow of his own.
It was probably a bit like Ullrich losing to Pantani, though not as immediately shocking, since when Pantani attacked it was such a long way from home that it wouldn't have been as immediate that Jan was in big trouble. Whereas Pogacar almost cracked to the level that Landis did, but he was close enough to the finish to only lose three minutes rather than five, and most of us still strongly believed in the possibility that he could turn it around.
That was kind of a bit of a let-down. It certainly wasn't from want of trying. How does this become virtually undeniably a really, really, really great Tour? McNulty also drops Vingegaard on stage 17 (which was a crazy enough stage as it was), and gains 1-2 minutes. Pogacar didn't necessarily have to comeback and win the Tour for it to be a '10', but there did need to be more suspense than Jonas almost crashing a couple of times.
It would have helped for Jonas to have a Contador Finestre moment of serious doubt.
As great as many of the mountain stages were, will it be as memorable as the 2018 Giro? Or the 2015 Giro? Or the 2006 Tour (though that had as many boring stages as any other)? Or the 2003 Tour? Ullrich did distance Armstrong a couple of times in the mountains, and Vino was a much more threatening third favourite than G.