Why haven't swipe keyboards gotten better?

Random question I know but maybe someone here will have an answer. With all of the advancements in modern AI why haven't swipe (swype?) keyboards gotten much smarter and more accurate. I have been using them for almost 15 years and if anything they have gotten dumber with more mistakes and stupid suggestions. Even though all phones seem to offer swipe capability they don't seem to have invested any effort in making it better. I have almost given up on it even though I lack the agility to type quickly with my thumbs.

Edit: I have just had a scary thought. I don't use google search at all (not really for privacy reasons its just because it has gottten bad). Could it be that the fact that Google doesn't know as much about me make it harder for swipe keyboards to work?