'shouldn't learn anything' vs 'didn't learn anything'

[Daemon99]

John: I have been here for 2 years and I haven't learnt a bit.
Joseph: It's funny you shouldn't learn anything, especially in this organization which is renowned for making better professionals of employees.

Does the above conversation sound natural?

Is It's funny you shouldn't learn anything = It's funny you didn't learn anything?
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Non-native speaker of English
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I intend to live forever - so far, so good.

[Torsten]

Hi, yes the conversation sounds natural to me and you understood the sentence correctly.

TOEFL listening discussions: What problem does the student have?