Swiss law appears rather dodgy. The link doesnt give any evidence of fraud, and the claim of negligence on the basis of the information provided is at best weak. Add to that the appeal mechanism isnt an appeal about conviction but merely process and I suspect the defendant will be feeling mighty aggrieved.
May be he will stay in Canada and invite the Swiss to try for extradition.
This IMHO appears to be a case of an unfortunate pilot who has fallen fowl of a bizarre legal process. Sadly this happens in many countries but I dont see it has implications in the many countries that have a more recognisable system. Such as Canada...
I wont be applying for Swiss citizenship this year.