Teachers deciding Exam Results

I read the following article:

Teachers to get sweeping powers to decide exam results in England

As I said last year on facebook (and which resulted in me having to block a certain relative on there) this makes the grades meaningless.  Someone who brings in an apple everyday for the teacher will get high grades, those who take issue with the teacher's thoughts will get low grades (precisely those pupils/students who might tend to be the most intelligent).  And, of course, rampant grade inflation means that the grades cannot be compared to historic results.  This makes it very difficult for Universities and employers to establish who has the most ability.  It's just insane.

Exams or tests should determine one's grades, and most certainly each school's proportion of specific grades shouldn't differ from that attained in 2019.