Is it? The car dealership near where I grew up had a 100 foot tall pole with a Canadian flag at least 10 feet wide, probably more. And that's a car dealership... Flags were everywhere: gyms, offices, banks, schools, etc... Can't say I toured any factories to specifically know if they were there, but I'm guessing yes.

Of course now it's different, the flag is less common, to the point in my home province (Alberta) you see more Albertan flags than Canadian ones...

It was actually about the occasional presence of a flag in a factory, particularly in photo ops.