Why? Because they were "boring"? I never understood that critique. Mario Party games have never aspired to be more than fun laid-back party games, and they have always succeeded in that regard with every group of people I've ever hung out with. It was an even more popular pastime than Mario Kart.But they literally tell you why.
Fans have been tearing the last two games to shreds, also telling you why.
What is this selective hearing/reading with MP fans?
The last two games were shat all over because of the car. Which, as I mentioned, I firmly agree with, lol.