You people need help. Yes, he conjured up an interview with the Browns because of Dreisbach. Keep in mind, the Browns couldn't ask him without the Bills permission and it would have leaked when they asked just like it did now.
He is getting one interview from the teams looking for a head coach. One interview...from the Browns.
Of course he takes the interview. Turning down an interview would look bad that you wouldn't even talk to a team. Taking the interview puts his name in the headlines. He wants to be a head coach someday. Maybe that is day is soon with the Browns, but I wouldn't hold my breath on that.