This is not just limited to Intel. It has happened at countless other large tech companies as well. It used to be that people were given more latitude when pursuing the company goals, but now, its more like you are placed on a set of railroad tracks where no deviation is tolerated. You are essentially told what to do, how to do it, when it is due, and you have to do it according to rigid processes. You are always told to "follow the process".
When this happens you don't get groundbreaking inventions anymore. The only thing which matters are short term goals in order to meet investor expectations for revenue and profit. In other words pure short sitedness.
It used to be that there was some sort of balance between management, shareholders, customers, and employees. Now, the balance is lopsided. Management comes first, then the shareholders, then the customers, and then finally the employees. This is the flaw with C-corporations and the mentality which came to be in the 1980s with salt-water (Chicago school) economics.
It also used to be that there were organizations embedded in large tech companies which did a lot of "blue sky" work which involved long term efforts to come up with the next great thing. Bell Labs was one such entity embedded in AT&T. The shareholders won't justify this kind of "cost center" any more. Even the drug companies don't do much original research. They just buy patent rights from research that leading universities have done, then expend effort to productize it.
When everything becomes so rigid and tightly controlled I can see why some people would leave. Some people cannot function in such an environment.