Under EU dual-use rules, filing and retention are separate duties: what the authority asks you to submit is not the measure of what you must produce years later. An undertaking dropped from the pack can still be worth taking and holding. Korean practice I do not know. After a list grows, what reaches us first is parameter requests, not paperwork.
Your split is the useful part, and I think it holds on my side. In my market the end use paper is made in duplicate, the buyer keeping one and us the other, and how long we hold ours is set by our own internal rule, not by whatever the application asks for. A shrinking form would shorten nothing here.
I went back to the ministry notice after reading you. It removes the undertaking from the documents required for the licence and says nothing about holding it. Silence is not an instruction either way, and I cannot tell which way exporters there will read it.
Your parameter point matches mine. The requests came before the customer could say what the machine was for.
