Unless an Alaska Airlines staff member tried to put her wheelchair on an escalator, there is no case.
It sounds like they may be comparing this to the airline being responsible for a minor on the plane and somehow the minor gets lost and is picked up by a pimp.
Or something like that.
Read the article! The family paid Alaska and Huntliegh to have someone take her from one flight to another.
From the article:
Kekona's family is now suing Alaska Airlines and Huntleigh, USA for failing to provide what they say was agreed upon gate-to-gate transportation.
I believe she was trying to make a connecting flight and was not escorted between gates.