Do you actually have any local knowledge, because this document supports none of your assumptions. Even the councils own cycle route maps doesn't include these riverside walkways. These were proposed routes, but they haven't been implemented. As clearly stated in the document. Bike parking doesn't mean it's a cycling route, so not sure how that conflicts with a dismount label?
Unless you have a cycling route map from Tower Hamlets I'm not sure how you can argue my on the ground assessment is in error?