Scotus always proves just how political they are by holding the most politically contested decisions to the end. They clearly are not blind to it as they would have you believe
EVERYTHING in DC is political.
Also Barret has kids who are in school. Delaying to make sure her 7 kids are safe from despicable leftist loons-
Before the ink was dry on the US Constitution, bad people immediately started to devise ways to subvert it and that happens to this day.