Why is this downvoted? "Touch pad" is the perfect mix of ambiguity between track pad and touch bar. It's a pretty careless mistake to write a blog post about a piece of tech and not even get the name of the tech right...
The post you replied to is correct, but not usefully correct. It sounds overly pedantic and elitist, like arguing that one shouldn't call "LEGO bricks" "Legos".