Ok I see where you're coming from now, and I think it's a bit of both, computation is more centralised than they expected (let's be honest, computation will always be cheaper in a massive data center) and also they were early as a result of that. We are constantly seeing new streams of data in areas we didn't realize we wanted data from, therefore I believe this trend of increased computation will continue, but the majority of our computation will always be done in massive data centers.

I do feel you are splitting hairs a little here, sure kurzweil and kakus prediction of 2022 isn't exactly how they thought it would be, but the level of computation and smart devices we have compared to 30 years ago is mind boggling.