Many of the programs you listed don’t cut any time off. They’re just a special pipeline program that can help you get into med school.

Of the ones that do save time, most cut 1 year off not 2. And they do it by having students take more than a full time load during undergrad.

It’s essentially the same thing as taking an extra class or 2 every semester so you can finish undergrad in 3 years instead of 4.

I randomly sample 15 of the programs listed there and 14 were 8 year programs. Only 1 had an optional 7 year program (if you were willing to take more than full time load or go to school in summmer). And there were no 6 year programs.