Just saying it's not a spoiler because there are differences is a lame copout. You know damned well they are spoilers.
"Sort of" is not hard confirmation. A guess is a guess. I have no access to future WD scripts, and we both knew the series has moved away from comic plots on numerous occasions (ex. Lori and Judith's deaths, Shane lasting longer on TV, Dale's death, etc.).
That said, the speculation points were just that--somewhat based on a suspicion from the comics, but that--as far as i'm concerned--is only a "sort of" spoiler IF my guess becomes a reality in the final 3 episodes of the season.