Yes, I wonder indeed. Care to scroll back up and see?
It's not, but the discussion was not about Hurontario specifically. It was a strawman, posted in response to a picture of the elevated guideway, that "This must be the intrusive elevated rail everyone's talking about!"
Since this is neither an extended portion of elevated rail, nor does it make reference specifically to covering a suburban stroad, it feels appropriate to respond that some suburban hellscape is not the vision of urbanism I want to protect when I rail against elevated transit.