So I came across two cases in this forum:
1) The person was from India and was working in US. Never traveled anywhere. He did not fill anything in travel history, not even first trip. Got ppr.
2) The person was from x country and working in canada. Never traveled anywhere. Left travel history blank. He was requested travel history by cic post eapr.
So no right or wrong in this i believe!
In second case that you have provided there is one thing that this person forgot. She/he suposed to put hi/her first trip to Canada. When you are traveling for the first time to the country you are not yet the resident of it, Just after you pass the border you become one and only if you are travelling on workinng/study visa. If you are traveling on tourist visa than your are not a reident of this country, just a tourist.