I agree. They're not trying to simplify lives, they're trying to justify their job.
Get used to organizational inefficiencies. It's part of life, and you learn it in school.
Bright people will always have a better way of doing things - but change is always challenged. Always.
@JamieTheTransfemme no, you should read this: https://academia.stackexchange.com/questions/132549/why-are-examinees-often-not-allowed-to-leave-during-the-start-and-end-of-an-exam