This is absolutely wrong. The action itself is an evidence that you are seeking the protection from the country that you fled. And it is not the Canadian government that need to prove your intention behind it, the onus is on you to prove to the Canadian government that the action you took isn't for the protection from your country of origin.
True. The onus is on the refugee to prove their intentions, however, I hope you can see that a passport renewal by itself is not a good argument to prove that a refugee intended to seek protection from their government. A kid out of law school can easily fight this argument.
Passport renewal + using it to travel to other countries + traveling to your home country is what indicates that the risk situations in your country are no longer there and that you are fine with the protection being offered by your home country. You do all of this and then you are screwed.
Even if you renew your passport and travel to other countries (except your home country), it's hard to imagine that this proves your intentions of seeking protection from your country of origin. A kid out of law school would have to give more arguments, but again, I'm pretty sure would be able to fight it off.
Of course, note that I'm accepting the fact that the government can start a cessation application and put you through a lot of pain... So if the refugee made the not-smart decision of renewing his passport and traveling, then he better gets ready for a potential fight and hires a good lawyer. But I wouldn't jump around saying that he will lose his status in Canada.