Ha! You needed a guide, not a ride.
They could have assigned you a less-able guide and saved chair-wear.
Though maybe the helper service does not even try to note the exact help needed, knowing that miscommunication happens. WhatEVER the client’s difficulty is (weak, blind, deaf, stupid), throw them in a chair and push, they will make their plane. Lowest common denominator of handicaps.
My parents booked cross-country, with tight change at O’Hare airport. Apparently that place is bad even for young folks. My dad hears OK with aids but doesn’t walk-far like he used to. Mom secretly booked a chair-ride, not knowing if he would be offended. He was surprised but not displeased. And it was good they did. It was a very long zig-zag cross-airport walk. The pusher knew the route and knew the timing was close. Mom, who still walks well, just about kept up, but was glad she had Dad for a bag-cart. They did it again this year. They tip their pushers generously.