Maybe the point isn't so much about the wheelchair itself... but it could be about providing people with a platform that they can use to raise awareness of how wheelchairs affect their lives???
Even in 2021, we still have ignorant people who insist on standing in the way of wheelchair users and refuse to give way when politely asked to do so, we still have shops and other premises that are inaccessible to wheelchair users, we still have the idiots who park on the only area of the pavement where the kerb is dropped and people who randomly think that it's acceptable behaviour to grab the handles of someone's wheelchair and take off with it and them.
Wheelchair users, in a lot of ways, are still being treated like second grade citizens and people need to be more aware of how they can better help when they do see someone in a wheelchair.