I don't know what you are talking about, and I dare say neither do you... Do you even know where the supposed aircraft was at FL430? Was it even in Canadian Airspace or a Canadian Aircraft?
I have it on good authority that no WestJet Aircraft have exceeded FL410. I doubt the incident you refer to ever occurred...
There have been references to poor lifestyle and quality of living in this thread. I have undertaken to rebut those accusations. After I have stated facts others have countered with supposition.
As someone more eloquent than I once said, "Common sense ain't that common..." Good luck to you...