You should not have been confused. It was never reported that the initial release of Apple Intelligence would include anything other than support for US English.
For Apple Intelligence in China, this is what they say:
For China residents: Apple Intelligence will not currently work for supported devices purchased in China mainland. For supported devices purchased outside of China mainland, Apple Intelligence will not currently work if you are in China mainland and if your Apple Account Country/Region is also in China mainland.
When Apple Intelligence is available in the EU or China mainland, previously purchased devices that support Apple Intelligence will be able to activate and use it in that region.
How to get Apple Intelligence - Apple Support
And as recently as less than an hour ago, this is what was said at Apple's Investor conference about future rollouts of Apple Intelligence:
Q: As you think about this staggered rollout of Apple Intelligence, can you help us think through the potential global install base of phones that will have access in their native language or region in their next year or next two years, and what are some of the gating factors in the rollout?
A: If you look at our schedule, we started with US English on Monday. There's another release coming that adds additional features in December, not only in US English but also localized for UK, Australia, Canada, Ireland and New Zealand. Then we will add more languages in April. We haven't said the specifics yet in terms of languages, but we'll add more in April and then more as we step through the year. We're moving just as fast as possible while ensuring quality.
https://www.macrumors.com/2024/10/31/apple-4q-2024-earnings/