Because it’s a big ol’ coin prominently out next to a sitting/waiting area in the bagel place, somewhere that you can’t miss, and it’s still there! Also, though it’s hard to tell in the pic, I’m pretty sure that I could see a bit of glue/epoxy around the bottom edge that they didn’t quite clean up.
How can you tell it's glued?
Yeah, it is hard to see the glue in the pic.