It's a good route. Better than in other years. The problem is the teams working against the route. The harder the route the less are teams willing to risk anything early on. If you force a really hard selection early, a lot of riders will be seriously left behind and out of contention. That will not really add suspense on the later stages. If we want more exciting Tours the key is probably not so much a change of the route, because teams will find "solutions" in order to make it boring. Reduce team sizes further - but then the topic of it being a "team" sport is sized down as well. Banish power meters. That's still the first thing I'd do. Worth a try.
Our expectations and the very decided evocation of expectations by organizers and media are wrong. They try to split the race into more and more small bits, pretending every ten minutes something important will happen. At least at the end of the day we will have a complete change of the situation. But it's one race, well, more or less. I know it's not really comparable, but I'm going to compare nonetheless to highlight my point of view: If you tune in in the middle of a 10.000 meters race there will not be too much action, either. You will see who's absolutely left behind, you will see a few hints of form, but that's it. We don't complain, because that race will finish soon, it's a time span that we can deal with, and then we see the last two laps, and that's where the action is and we are okay with it. But even athletics have this big problem and they are reducing the number of distance events, because spectators obviously can't be expected to watch for 20 minutes! Well, cycling fans have a longer span of attention or a will to suffer, but the Tour lasts 3 weeks! We want to know more about the outcome sooner! But really, that's not what a three week race is about.
So we have the stage wins to keep us interested. But first of all, because this event is so big, everybody who has the slightest chances to finish top10 goes for GC instead stage hunting. Secondly some teams are about ten times as strong as others and those are also the teams with the most serious GC contenders so they are only interested in controlling the race and also have the power to do so.
You can try with the route as much as you want. Fight the teams. But the teams will keep on finding solutions how to control the race. Mostly this is not a battle between Roglic and Pinot. It's a battle between the race organizers who want the teams to take risks and the teams who do not want to take any risks.
All that said the Tour has almost always been boring and it will continue do be so. I'm okay with it. It's like my grandparents. I know they will not change, they won't be cool. But I really care about them and want them to go on and even if sometimes I might say "could you not be a bit more open to risks" I also take pleasure in knowing them and coming to the same again and again. As I can't see them in Covid times I'm happy I can at least see the Tour, boring or not.