Yes but the Easter show comes in School holidays and is a great crowd boosters but isn't as simple as putting x v x at the same venue a month later and gets the same result.
And when Members/sponsors complain to the club because game got moved and they lost the ability to go to games and clubs then what?
The clubs have always and still are community based. Atleast half of the sponsor do so to stay in touch with the local community. Clubs know this and hence play what is suitable for them. It is why Sharks can make money on a 12k crowd
Again if anything it offers a great opportunity to increase corporate support. Not only do they get 9-10 games at the home stadium but 2-3 times a year they get to enjoy a luxury corporate suite at a new stadium. Not only that but MRL could offer the away team use of corporate suites at a reduced rate giving both clubs even better opportunities.
As for members it provides great value add opportunity. Not only do you get all home stadium games, plus your teams home event games but you could get reciprocal access to away event games adding another 2-3 games a year you can see your team in your membership.
Taking 2-3 games a year down the road to better facilities doesnt destroy community. Sharks for example have shown they have more members outside the shire than they do in it.
To counterbalance it a bit all of the non Sydney clubs should have a home game at magic weekend.
Sharks dont make money on a 12k crowd. Hence why they are out buying more pokies and other revenue raising investments.