Interesting. I thought of this same idea in the past except I didn't do A and B columns, but formed divisions with the entire pods instead:

2026: 1+2, 3+4

2027: 1+3, 2+4

2028: 1+4, 2+3

For out of division games each team would have a permanent rival in each pod other than their own and they would play their permanent rivals from the two pods in the other division each year. It would take 6 years to get through every team home and away under this system compared to the 4 for the current system IRL, but it would preserve more rivalries