Paul, if your theory was accurate, when it rains, people would lower their seats for additional grip. It’s just the opposite. When it rains, people raise their seats for a higher center of gravity. This does two thing, on corner entry it transferes weight to the outside front, lifting the inside rear allowing the chassis to rotate. It also transferes weight to the outside tires through the corner for additional grip/speed.
Hope I’m explaining this ok.
When your over stuck, lower the seat to take out grip