This is the central point that is always missed on this forum.
These are features that apple are dedicating a huge amount of resources to. Tim Cook frequently talks up the importance of artificial intelligence as the future. Apple Intelligence is a tentpole feature of new iPhones, it has heavily influenced their advertising, and takes prime position in their marketing materials.
Withholding these features, even for just 6 months, is harmful to Apple. Especially when Apple appear weaker in the category, and competitors are frequently releasing AI products.
However here you'll read a byzantine concoction on how this is acshually a 4D anticompetitive chess move.