Apart from bigger bonuses, there are not any significant benefits.
I do recall back when I was made Club Rouge that there was this strong impression that it was "for life", in other words, unlike other loyalty schemes, there was no requirement to earn a set number of rubies per month, make a certain number of deposits, etc. The only way to get booted was for there to be a decision made by the management, the same way one got in. I have not heard until now of anyone being kicked out of Club Rouge, so this reinforced the impression that it was "for life" unless one committed a serious transgression that warranted getting booted. I am sure that this would not necessarily be confined to a breach of the terms, but might encompass things like general behaviour, such as being abusive or rude to CS, making false and malicious statements about 32Red in a public forum, and of course the thorny issue of how one approached the bonuses. 32Red did NOT want the bonuses to be the focus for anyone wanting inclusion in Club Rouge, so if anyone cited the bigger bonuses as the reason for desiring admission, they would be certain NOT to get it. Similarly, an appeal based almost exclusively on the loss of the enhanced bonuses isn't going to get anywhere.
The "business decision" may well be related to Club Rouge as a whole, and whether the enhanced bonuses are going to the wrong players. The purpose of any bonus is to keep a player playing, and outside of Club Rouge, we have seen a few cases where players have been taken off the bonus list because their play is too bonus focussed.
One case was a player who had joined all 4 skins, but would only deposit once a day on the skin offering the best bonus. After a while, 32Red took him off the bonus list for all but one casino, making it a "take it or leave it" of the daily offer, rather than being able to pick one from four which was the best. This is nothing new, 32Red have ALWAYS done this where they feel players are taking too much advantage of the bonuses, and not really participating in other aspects when a bonus is not involved.
There is likely to be a better explanation given to the complainant, and an idea of what criteria might make them eligible for review next quarter. The new loyalty terms do state that players who have reached Gold status are reviewed for POSSIBLE inclusion in Club Rouge, but it's no guarantee, so it shouldn't be possible to game the system simply by doing the minimum necessary to achieve Gold and hang on to it for a whole quarter.