Today you have to be blind to not see the change that is coming.
World has its own (massive) inertia, burocracy present in businesses accounting for a big part in it.
AI itself is moving fast but not at infinite speeds. We start to have good enough tooling but it's not yet available to everyone and it still hangs on too many hacks that will need to crystalize. People have a lot of mess to sort out in their projects to start taking full advantage of AI tooling - in general everybody has to do bottom up cleanup and documentation of all their projects, setup skills and whatnot and that's assuming their corp is ok with it, not blocking it and "using ai" doesn't mean that "you can copy paste code to/from copilot 365".
As people say - something changed around Dec/Jan. We're only now going to start seeing noticable changes and changes themselves will start speeding up as well. But it all takes time.