I'm sure that we would all agree that everyone, regardless of ability, should have freedom to access Firhill. If someone requires assistance then they can bring a carer. It seems logical to me that both tickets are linked to the disabled person's account. It means that they are in control of their freedom of movement. In some cases the carer might not always be the same person.
In some cases, of course, specialist care may be required which only one particular carer can provide. I don't know what your personal circumstances are @Lenziejag and nor is it any of my business to know. It seems that your particular issues i.e. incompatible phone operating systems; inability to find a photo on your phone; inconvenience of sharing a phone at the turnstile, could possibly be eased by contacting the club's Disability Officer. There may be a workaround within the new system that they can help with.