The phrase "interesting corollary" means that there is a fascinating result or consequence that can be derived from a particular situation or idea. Full definition
It's an interesting corollary to our company. (inc.com)
But when it comes to the #DinnerMode movement, the idea of dining with family spawns an interesting corollary question: What about the countless people without families who could still benefit from nightly time away from their phones? (inc.com)
This kind of understanding presents some interesting corollaries. (religion-online.org)