Keeping in mind The Guiding Light's history of the absurd (Reva finding a magic oil painting and travelling back in time to the Civil War; Reva being cloned by an evil scientist planning to take over Springfield), the question then becomes why didn't they do this sooner?
But seriously, unless these super hero/villains cure Reva of cancer or bring back ultra bad-guy Roger Thorpe from the dead, I agree this ranks as one of the worst ideas ever, one that will either get brushed under the rug after the damage is done (like those cloning and time travel storylines) or ultimately kill the show after 64 years.