Well, one of the stars in a binary system *was* swallowed, at least by my reading of the article.
Even if potential planets were close enough to the remaining star to stay in its orbit, and not have their orbits radically altered - I was more interested/worried in the resulting radiation from the swallowed star's demise.
It'd be intolerable for any life. So many forms of radiation would be unleashed as a nuclear furnace was ripped apart by sheer gravitational force.