Honestly having an interview process that is highly standardized and teachable + learnable is a good thing, so I'm not sure why people complain. You know exactly what sort of questions you will be asked from company to company, and can spend nights and weekends over a couple weeks studying for it.
Most jobs are not like that, and then you get extreme variance in expectation with little communication on how to prepare, which is a waste of time for both the interviewer and interviewee if the interviewee has no clue what will be asked or expected ahead of time.
Most jobs are not like that, and then you get extreme variance in expectation with little communication on how to prepare, which is a waste of time for both the interviewer and interviewee if the interviewee has no clue what will be asked or expected ahead of time.