It's not that hard to do. The soaps have done this same thing for decades. Even Dallas brought back to life a dead character. Roseanne can wake up in a hospital hooked up to all sorts of i.v.s and monitors. She overdosed & hallucinated while in a coma that she was dead and the family carried on without her, and voila! She awakens from the coma and goes back home to be the matriarch she always was.
Or Married With Children which, after Katey Sagal miscarried, did a big “nevermind” on a pregnancy story line and went on as if it had never occurred.