No, not at all, and I've never seen anyone try to fly a red ensign in Canada either. Also, Canadian veterans do not pine for the red ensign.
I know they'll be die-hards who prefer the old flag but I haven't really heard of it being an issue there.
That's because it's not. I don't know why there are a few Canadians here and on FD that attach themselves to the red ensign but I imagine that it's just a rebelious stance against the liberals in Canada who they feel took away Canada's flag (if you want to call it that). They are just ignorant of Canadian history, especially about what Canadians thought of the red ensign before 1964.
You may not personally like the current flag, but it is still one of the most indentifiable in the world. Everyone knows what the Canadian flag looks like. And, thankfully, it is strictly Canadian.
I'll grant you that, there are so many flags that look alike, at least out countries are unique.