How much change is desirable and tolerable, given changes benefitting the larger population will be disruptive to some people? We can make most peoples’ journeys faster and better by changing the network, but it is not possible to make it better for every person nor for every current user.
People have built habits around the existing bus network. Any changes, no matter how beneficial, will be inconvenient for some people. Possible inconveniences include having to walk a little further, or having to change buses for trip on which it's not required now. Should network changes that improve service for most people be considered, despite inconvenience to some people?