Also worth noting that people are perceiving prices rising because they are in fact rising.

Definitely. One way is to ask "Do you think prices are going up?" and another is to buy $1,000 worth of groceries and then six months later buy exactly the same things and see what the difference is.

OP's article does it the first way and Statistics Canada does it the second. https://www150.statcan.gc.ca/t1/tbl1/en/tv.action?pid=1810000201