I didn't think Genie Francis was fat, not that you could really tell, with them dressing her in those matronly mumu-like clothes. She didn't look like she puked her guts out after every time she ate. She did look like a woman her age who has had a couple of children, which of course she has. I'd wager to say there are far more women out there who look like her than like your poptart of the week who looks like a skeleton with skin. Personally, I'd rather see a variety of body types on my soap. I'm more interested in whether or not the actress (or actor) can act than how they look. It's too bad the current writers on GH don't live up to GF's acting ability.
But I doubt you'll have to worry about seeing Genie on the screen too much. Unless she's going to be Sonny's next conquest or Snarly's new best friend, she'll likely not get much screen time at all.