Unfortunately we have many attempts by well-meaning teachers to teach the public on different topics. In our case, we are dealing with a seemingly simple case of Hebrew.
The name קֹרַח-Qorach shares a form with the word קֵרֵחַ-Qereach-Bald. Martin Noth, for example, argued that the name Qorach was derived from the Hebrew word for “bald”, but many others have done the same.