in my case the changes made it easier (i..e fewer flights) for me to get 1600 CPs each year (my patter is mostly regional flying in J). And since I increasingly feel no reason to be loyal to CX anymore, I now actively manage my flights now to not go much above 1600 CPs. In the past I would activity manage to achieve the threshold. The rest goes mainly to SQ. Good for me. Maybe not ideal for CX. Easily fixable, if they cared.