Would have thought it's fairly obvious.
If all I have to do is tell the club I was working, or travelling or sick to keep my ticket, what is the actual point of forcing people to go through that process.
Unless you're going to have to provide proof, or the clubs going to spend time investigating claims it seems an utter waste of everyone's time to go through that process.
Which makes we wonder why they are doing it. Either it's because it won't be as easy as some say to keep your ticket, or the club are just banking on making supporters feel so shit they walk away.
Either option is pretty piss poor by the club.