Earlier quoted context omitted.
While I definitely agree with the "you don't know what you don't know" point, I also think there should be a healthy dose of judgement for what should be considered "mandatory up front" as opposed to "you can learn it when you need it." My last on-boarding, for example, I thought was approximately the right balance. Bootstrap the most basic credentials, set up MFA that covers 90% of your needs, get your access badge,…
My point is that the onboarding process was already designed with lots of judgement, and plenty of past experience. The process was decided upon by others who are more qualified than you, as a new hire. Until you understand more about the company, and its organizational flaws and quirks, you should refrain from criticizing some of these things. Overwatch, write these criticisms down and look at them a few weeks or mo…
In my experience it's not an issue of egocentric upper management. It's an issue of a process that is 80% tuned and for various hard to solve organizational reasons it doesn't get to 90%+ tuned.
For example, in my own latest onboarding about two years ago, in hindsight I definitely feel that about 1 hour of it was dubiously useful and was a political concession to someone playing visibility games, out of about 6 hours of up front orientation.
I think that grade of "off for reasons but not always good ones" is the norm. It's like the event planning equivalent of that one corner of the code that makes no sense because someone bikeshedded it last year.