I have had a number of cats in my 60 some years. I have owned 4 different Siamese. All were the traditional (applehead) seal points. One lived to be twenty years, she went through undergraduate, vet school, trained my wife to like cats, and taught my 4 children what a cat was all about. Was very territorial and a loud mouth with a very gutteral meow. Was a very close member of my family. All the other seal points that came along were good but I guess the first one and I bonded because she was my only family for a little over six years. Also her history with my family for 14 years made her special.
The others were good cats just never formed the bond like that first siamese.
I am seeing more of the modern siamese and maybe I am skewed towards the traditional but I don’t think the modern siamese lives as long as the traditional. And I think the modern has more health problems than the traditional. My two cents.
If they change the traditional siamese name to the Thia, so be it. It is still the old traditional siamese in character and health.