>>1129231you can get all scientific and autistic all you want, but go ride a 23mm, 25mm, 28mm, 35mm, 40mm road tires, 1.75", 2.1" 2.3" 2.6" 3" MTB tires, they will all feel significantly different from each other.
Wider tires just feel so much more stable and safe than smaller tires. And there are a lot more factors going on than just grip. Wider, heavier also has a more obvious gyro effect, that's what makes them feel safer.