> AI agents don't seem to have sped up the corporate process at all.

I think there's a parallel here between people finding great success with coding agents vs. people swearing it's shit. But when prodded it turns out that some are working on good code bases while others work on shit code bases. It's probably the same with large corpos. Depending on the culture, you might get such convoluted processes and so much "assumed" internal knowledge that agents simply won't work ootb.