Earlier quoted context omitted.
That sounds way too short. Until a few years ago you needed to be a resident (=reside) three years before you can apply (which takes about another year). I think now it's four + application processing time.
Canada requires you to be a PR holder and in the country for 1095 days in the past 5 years to apply for citizenship.
You also need to actually be in Canada all those days. Any day that you're outside delays your citizenship by a day.
Then it takes about a year to process your citizenship application.
Overall, it's still much faster than most anywhere else.