It seems to me that humans are pretty adaptable and can figure things out quite easily if given the chance. So long as we have a reasonably consistent method of telling people where to find it, why do they need more information than that?
The current bus stop works well because it's easily visible from a distance, and easily identifies where the vehicle will stop. It does not identify what kind of vehicle stops there, that part is kind of irrelevant.
The Crosstown pylons are easily visible from a distance, and due to their locations by the entry doors, also allow people to easily find out where to access the system. They don't need to identify what kind of vehicle stops there because it doesn't need to - there is other signage elsewhere (and nearby, and in better locations) for that.
I think that part of the problem is that people view wayfinding as a be-all, end-all - one single piece must do everything. That's a great way to overload it and make it incomprehensible. There's no reason why there can't be a more simplified approach is used, with different pieces of wayfinding doing different - and appropriate - things.
Dan