When I think of Opaka on that planet, just waiting for that Federation medical team to arrive and solve her problem, I get a bit sad. Really, she's just a quick runabout ride away if anyone needs her. She's not dead--she's just in a retirement home. I guess Bajorans aren't susceptible to guilt trips.
She did eventually get off that planet in the Relaunch, but she chose not to return to Bajor immediately.