Plus with away tickets, it was only ever posting it one way, this is posting it two ways. Plus it would only impact finals, so if we don't have one for a few years people would get tired of the effort every September. Plus I'm not that bothered if the 10% of people keen enough to do whatever it takes have burner phones, there will be thousands who can't be arsed with it.
Whereas now on the same PC chair you can buy the ticket, forward the ticket and watch the game on a stream, at least get people out the house moving phones about, having it arrive late back for the weekend game because the fella you posted it to went on the lash after the game and was too hungover to leave his room.