Your last phrase is the key. This is a very short term temporary arrangement for a specific dated activity. A bicycle, buggy, wheelchair or shopping trolley in a seething throng of people is less than ideal.
I’d imagine that there’d very few buggies around at that time and no shopping trollies. I’d have sympathy for the wheelchair user, but practical safety of a mass may trump individual rights. Bicycles? Well, sadly, you get on it and go across a different bridge.