Do you try to argue though that the teacher didn't go into it because of his personal views at the matter?
The article doesn't directly give any such information, but it says that what the teacher taught was in full accordance with the 1st grade curriculum and the official biology textbook.
If anything in the entire story was done because of personal views, it was the action of the school headmaster (of radical left origin) and the educational council inspector, which resulted in a half-year suspension of an experienced teacher (25 years of teaching), who always got positive reviews from students in internal polls conducted at the school in question.
It's very difficult to get good quality teachers
It might indeed be the case, but according to the article the teacher in question was always liked and respected by his students.