Republic went through the same transition to offering a low premium plan when I was there. The old plan reliably dropped in enrollment every year. They literally called it the "Legacy" plan. The only people who kept it were families with very unusual medical circumstances who couldn't take the hit to the max out of pocket terms. Everyone else didn't need or want it. If you had other plans besides the Diamond plan before this year you absolutely should look at the Diamond plan and do the math to decide if it's better for you.