It's certainly possible that piece will remain there forever. Just don't know. Guess I'd have to be there for a more informed decision.
Of course, but that's not a fun thought experiment. It seems this is a strange bit of part design/manufacturing. Why is this part this way? What purpose does this serve? Do I need it; Can I do without it? Is there a downside of it breaking during operation? So, I offer the question and ask you take the story at the given conditions: there was a snapping noise and now there is a hairline in this dorky little nubbin in the part. Then you have this choice: Leave it to maybe fall off/never fall off. Or, just take it off.Guess I'd have to be there for a more informed decision.