attribute promote is not attribute creat?

I did not understand this principle.

i think that (point to detail and detail to primitive) are same that (point to primitive).

But result is not same.

I struggled for hours but didn't get the answer.....

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https://preview.redd.it/sfzy0yszz0241.jpg?width=1916&format=pjpg&auto=webp&s=0707949744afcc82c2e5e52db74f808e27338726

https://preview.redd.it/7fpzl4vzz0241.jpg?width=1920&format=pjpg&auto=webp&s=af435daa729892f07198794eead06a9ee6b34943

https://preview.redd.it/jin4syszz0241.jpg?width=1920&format=pjpg&auto=webp&s=52b4c5f9978dfbfad5f5e4150a0324f61f756a99