Would the star's system orbiting the black hole change anything for its planets though? It's like with us, we barely care about Pluto let alone some distant object the sun and us as well are orbiting.
More likely than "swallowing the planet" is disrupting orbits, sending the planet either flying off into deep dark cold space or onto some uninhabitable orbit around the star.
If the person above did their math correctly, a black hole and a star orbiting each other a 1.39 AU would be a problem for planets. Injecting a black hole like that into our solar system would be real trouble for Mercury, Venus, Earth, Mars, probably Jupiter, and Saturn too. The rest might be ok after a long while for their orbits to stabilize.
If the black hole formed while in the system, the resulting radiation would wipe out all life in a light year radius. If the black hole captured the star, the tidal forces would slowly rip the planets apart.
