JUst found this, which answers my original question. It relates to York's reaction on getting Crusaders (then Celtic Crusaders) at home last year and it's taken from the 'York Evening Press':
"Season ticket holders at any professional club can get in free for the first game their club play in the competition, meaning Crusaders fans will not add much to the coffers of the shared gate.
Knights general manager Ian Wilson said: “It’s probably not the tie we wanted. It’s a home draw, though, and a Super League team so we can’t be too disappointed.
“We haven’t played a Super League team at home in a competitive fixture since the days of the old York club, so it’s a first for the Knights and something we’re looking forward to.
“We were hoping to get a Championship One side to improve our chances of going through and getting one of the bigger boys in the next round. That way it would have been more lucrative, when their fans have to pay to get in. Financially, therefore, it’s not brilliant, but the experience will be good."
Suppose the RFL know best, as usual.
