Well, as it happens, I actually happen to agree with Metrolinx that there is no need to have a separate graphic for subway and LRT. All forms of rapid transit should be shown as such - whether it uses sensible old technology or some gadgetbahn nonsense is irrelevant to riders.
What I find baffling is the fact that, at length, the current LRT graphic is going to be replaced by a different one, as logical as that alternative may be. Isn't the whole point of these symbols that they're supposed to be fixed in place so that the public starts associating the type of transit with that particular symbol? If they change it, there is a not insignificant portion of the populace who will be confused by this. And that's fine, having spent many years working in retail, I fully support anything and everything that forces the unwashed masses to think a little, but I'm confused as to what their argument is for it. If you're not going to idiot proof it, why bother having any symbols at all?