The same everywhere. You missed my point - How would you get cleared to a flight level if you weren't allowed to ever mention flight level below the TA?
It was however, tongue in cheek.
That's fair. But these are guys who are used to the term "Flight Level" to mean everything above 18,000'. They're then sent to a location where that term may mean anything down to 5,000' in a (wide) geographic area of the world where it can be as low as 2,000'. Then they hear a clearance they've never heard before ("Flight Level Two Hundred") and it is easy to see how they could confuse that to mean 2,000' instead of 20,000'.