It reminds a little of those pubs that have the TAB in the main bar, sometimes you can't buy a beer because the punters always get served ahead of everyone else. To not do so would see punters yelling abuse because they missed out on getting their bets on. Now imagine a beer drinker carrying on and stamping his fist because the service was too slow. Firstly, you'd pick him as an alcoholic with a serious addiction, and someone who probably needs professional help. And secondly, he wouldn't get away with it for long and security would most likely throw him out. But the gamblers get priority and the staff are in fear of upsetting them. It's not long before the social drinkers avoid the place and the bar becomes barren.
The parking thing is an odd complaint. You can't park in the Leagues Club carpark unless you're a member of the club. So the pokie members can hardly complain. Besides, they get the whole carpark to themselves on all the non-game days - over 350 days per year. Believe it or not, there are members of the Leagues Club who actually watch Rugby League. And on those few game days every year, the club does a roaring trade. And yet, the club, it seems, would rather side with the selfish malcontents.
So their argument doesn't make any sense at all. But we are dealing with people who have an addiction (both the gamblers and the reciepients of gambling revenue) and that doesn't lend itself at all to commonsense or logic.