Comment 1 for bug 1214092

Yes, when you make an app bundle, the Qt libraries are copied over into the .app. The correct way to resolve this issue would be to updated the library path on the libraries. IF you've tried that, and are still having issues, it's likely the command you used wasn't correct.

You can also just delete the libraries from the .app; as then both the libraries and the main binary will use the system frameworks.

Your issue isn't Stellarium; it's understanding Qt plugins and Mac library paths. So I'm closing this.