Good to know about those jobs.
It's funny because the two internships I did in my field (industrial design) were pretty much "here's your desk, go to work". the conditions made it so that I wasn't
even an intern, I was a junior, so had all the responsibilities of being a junior and no guidance from anyone (and the interships went great).
Who knows, maybe it would take me even longer to feel confident in the reception job (I doubt it, I pick up things quickly), it is quite different after all.
I understand keeping an eye on new staff for a few months, even more because I would have closing duties on my own after the two month training period.
But it did seem long for the few responsibilities tied to it.
Don't worry, I'm not a professional Darwinism candidate, I would never go to work and say that "I've got it, it's so easy! I don't need to take notes
" and then suck at it, I'll be too busy being embarrassed not remembering stuff on the first day and lamenting that I suck at even the most basic job.