Maybe you two have missed one or two things when you first quoted my post.
I've never claimed that the automatic detection works as well as SwiftKey's.
I also didn't say that there is every language available. I only wrote that it is not true that the native iOS keyboard does not have this feature at all. It does.
Yes you did:
The native iOS keyboard has the same exact feature since iOS 10.
I just said it's no good, that's all.