They brought back Kira and Quark, yeah! Takes me back.
That's not how phone boxes work
Not all characters merit 15 seasons, but these did. Now it's one last time, with or without feeling. The series had its ups (oh hell yeah) and its downs (do I need to be specific?). Today it ends. Everyone knows the climax was in the previous episode, so this is just the last wave goodbye, and it keeps its dignity, such as it is. It's OK, Sam and Dean. You can go now. Goodbye.
Sorry, I'm late to phrenology...