Again, not suggesting anything about the players or the notion that recruits often follow the person that recruited them, nobody needs that explained to them, least of all in caps.
I am saying it seems a bit petty for a coach who has been asked to leave to post something that seems to imply he's not leaving without first inflicting some damage. I think almost everyone liked those two players, but there's a very real possibility that the void they are leaving either is not that much of a void, given their collective historical contributions, or will be filled by two players with the greater potential. As you mentioned, Underwood likely gave his permission for Chester to speak with those players about following him out the door...which makes it all the more silly to post a clip saying you're not leaving without taking something with you.