I honestly don't see any conspiracy here. As the year has passed its halfway mark a lot of teams would have figured out the tyre preservation sweet spot in terms of setup, and also upgraded their cars to protect the tyres better, and also drivers finishing their adaptation period. For example if we went back to races such as Melbourne/Malaysia now, we could see 1 less stop as the optimum.
Personally the Hard never added much to me, it was clearly too hard and skittish for the cars.
The Medium is a decent compound, its durable with good degredation.
However i also think the Pirellis next year will be much, much more robust, especially the rears, the fronts id recon will see a slight improvement generally as well. Pirelli will become stronger to what the pinacle of F1 tyres have ever been in my opinion in the Bridgestone Potenza tyres, but the next thing they will have to work on is reduction of marbels.
Id recon that with the teams help, and another season behind them, id recon that Pirelli will start to make a product that is nearing perfection to F1 in terms of good enough durability that makes 2 and 3 stop strategies more the norm for the average F1 race with the occasional having 3 and 4 stop stratagies on certain tracks.
Pirelli will have to stay on their toes tho, as teams will slowly start to get to know how to make their tyres last, whilst keeping downforce at the present or higher levels and the speed of their cars at the same or greater levels, especially at the front end of the grid. Teams will soon optomise their cars to make even the soft tires to last 60+ laps.
personally i think pirelli have done an amazing job considering they have had to conduct their own tests with an out of date car , and that testing time with the teams has been totally inadequate