Switching from a Med Advantage to a Med Sup

I havent sold med advantage that long. Question I have is why can't you switch back to a med sup if you've had a med advantage plan. I know their is a couple exceptions such as the trial right and a couple other sencerios. But I don't understand why if they qualify for underwriting and in IL it's gaurentee issue with bcbs.

Just curious.

Source of insurance-forums.net