Can't comment on the ps.
I didn't expect you to - it was just to explain to existing members who may have been confused by how things have changed from our previous discussions on here.
Re the changes, there are other colours also left out (there are no "and ticked" recessive particolours listed for example so three of my own dogs would not have their colours recognised by the KC's system now) and some included which should not be so clearly the list is far from correct. If you and your breeder friends are members of a breed club (as most good breeders are), you should contact your club secretary or breed council representative & they can advise you further.