Hmm, But When you make any changes that were supposed to offer for a lifetime. At least You should make an announcement before deploying the changes. or, You can simply offer win-win things to your existing VIPs because they were supposed to get the benefits for a lifetime. Reaching Platinum 3 is not so easy. A normal player cannot be a VIP even he play there for a year or two. But, When you reach the level that means you have given a lot of afford. I am not blaming Stakes for making the changes because they had to do it to ensure the maximum quality. But, At the same time, They could offer something to their existing VIPs to make them happy. I don't know what Stakes thing about it since Stunna is silent about it.
A big site like Stake will definitely announce something to all of their VIP ranks before implementing changes to their VIP ranks. They just want to make sure that what they want to do can benefit members of their VIP ranks.
It might be better if one has no intention of attaining VIP membership within a certain period. As time goes on, they will still gamble and sooner or later, they will become VIP members. Well, maybe we'll see Stake announce VIP membership.