Who really needs to make changes? Thinking about it, should WGT really change or the people who keep playing those games and then complain about them?
Sounds an awful lot like people who complain about Wal-Mart's business practices and then shop there anyway. As long as those people keep buying things there the company has no incentive to change anything.
I would suggest that if there are really enough people who quit playing those games to have a substantial impact on them, WGT will address the issue. As long as they keep playing, the issue is going to be a very low priority one.
For those who do quit them, those people should be prepared for and aware of the fact that they might comprise such a small number of players that the problem is not as big as they are making it out to be.