It's always like that I'm afraid. If it's just paint, most people won't notice. The bike path on Laurier Ave from Elgin to City Hall for example is painted very green with bike pictures on it at the beginning and end, but still people will walk there. The crossing over Colonel By from the Somerset Bridge to uOttawa LRT station has three separate signs showing what is meant for bikes and what is meant for pedestrians, but people will still walk there.
You really need physical barriers if you want to separate bike and pedestrian traffic and even then it's not fool proof. Especially around busy places like LRT stations. Only thing you can do is go slow there really.
For Amarok, have you tried Strawberry? It's based on Amarok and looks pretty similar but it's actually maintained.