You might be correct.
I have flights(refundable) and hotel(cancellable) booked, and as a Cityzen I have little hope of just obtaining a ticket from the club. I would pay +/- 500 for a ticket while in Porto. The ‘craic’ while in Porto would mean I’d be happy to go as is, even if I don’t get a ticket.
BUT, I have much less interest in being hearded from airport to airport to ground to airport to airport, even though a match ticket would be included. Just doesn’t seem like ‘fun’. And everyone knows there will be stories of delays, cock ups, being in a car park for 3 hours, stuck on runways for hours, etc.