Although I agree with the sentiment, the Ontario university system doesn't actually work that way. For example for Software Engineering at Waterloo, the admission average is calculated using the five required courses plus whatever your highest course is excluding the former[0].
In practice, I believe every single Ontario university program lists English one of the required courses so it will always be included in your top six average.
And it should always be included as one of the important courses in Canada. If you can't communicate your thoughts clearly then your thoughts never really translate into the real world.
From what I remember, the later years of English class (in Ontario) are more focused on literary criticism than effective communication. This was a frustration for me personally, and my lowest mark in High School. The high 80 dragged my average down enough that I didn't make the cut for Waterloo.
As a (lapsed) English teacher, I must point out that critically examining how others communicate is essential to improving one's own ability.
(Mind you, your teachers might not have approached your classes in that way, and high-end literary criticism tends towards performative nonsense°, so I can understand and sympathize if they were a waste of time, but they didn't have to be.)
°It's exactly analogous to Brain Fuck: huge fun if you have the background, intellectual ability, and are in on the joke. Both are mostly pursued for the opportunities they provide to show off How Smart™ you are.
In practice, I believe every single Ontario university program lists English one of the required courses so it will always be included in your top six average.
[0]: https://uwaterloo.ca/undergraduate-admissions/admissions/adm...