Where countersteering has a place is setting up steep banking turns and correcting rear wheel loss of traction like drifting. Going around a corner and your rear wheel starts to slide out - counter steer. It's not something you practice for day to day riding turns.
But we could argue with words all day.
Here's a video I made while mtbing that shows a pretty good angle for the stem bars. Lots of turns without counter steering, which apparently, is impossible.
Watch from about 1:40 on
Here's another that shows the lack of counter steering on faster shallow turns. And this is a very twitchy bike.