> This attitude [...] is why service for the disabled is shitty.

Is 'this attitude' mine (GP's)? As far as I'm aware I simply described the legal reality.

The point is that the driver may not 'ditch these fares', and that Uber (et al.) simply bares any difference as the cost of doing business.

They are not allowed, by law, to discriminate between a disabled passenger who 'takes too long', an able-bodied speedy passenger, and an able-bodied passenger who 'takes too long' for unforeseeable reasons, so it is just what it is (the 'forseeable' as the 'unforseeable').