Mimic Is Not Needed (If You're Spending OM)

[Takanomiya Hijiri]

I was gonna post this in Quick Questions originally, but I don't wanna get told off for going off topic... though it is technically in response to a Warren's question, but... eh. Don't wanna risk it.

Sooo... a little while ago I saw Jade post this in response to a move of Warren's:

Mjolnir: This would require Mimic and that your character has witnessed Thor's hammer being used in-person.

But here's the thing, the Power description doesn't actually say that you need Mimic to buy someone's moves with OM, only that you have to buy them with OM if you want to use them after an hour has passed since they were copied (or you could copy them again, I guess, if the person that has them is still nearby).

On top of that, here's a quote from the Rules:

Summoning and Extraction In Detail
Summoning and extraction are both processes that seem alien when explained out loud, and yet are somehow instinctively understood when it comes time to do them. To summon something, a Prime simply visualises what it is they need and focuses on the Omnilium within themselves. This requires the summoner to sit or stand still for the period of time required (see the below section for more detail). If they do not have sufficient Omnilium, a kind of jarring feedback occurs - they know instinctively how much is needed. When summoning, the Omnilium emerges from the Prime in a kind of rainbow bubble, flashing through colours until it fades to reveal the desired item. It is difficult to summon anything discreetly.

In addition to summoning something from scratch, summoning can be used as a process to summon additional power or improve equipment. In this case, the rainbow bubble forms a kind of coccoon around the individual or piece of equipment being improved. Extraction is a similar process requiring uninterrupted concentration and time depending on the amount of omnilium being extracted, except that the bubble of Omnilium emerges from the item being extracted, which gradually becomes dessicated before vanishing entirely. Some sadistic Primes choose to kill their enemies using this method, even though killing a Prime conventionally produces exactly the same end result of Omnilium.

Important part in bold.

It clearly states that all you need to do is focus on what you want... you don't need to understand how it works; if you did, most characters would be unable to summon Dataverse Devices, for example.
If you've seen someone's gun or sword up close then there's absolutely no reason why you couldn't just visualise that in your head and create a perfect replica.
For other moves this may be more complicated, as these things may have some drawbacks that may not be immediately apparent when watching someone use it (e.g. cooldown times)... so in that case you could maybe argue that Insight would be required, in order to understand something well enough to copy it (though honestly, since your character doesn't need to understand how their car works in order to summon a perfect replica of it in the OV that functions exactly as it should, I'd still say that's debatable).

So... anyone else have any thoughts on this?
Am I totally wrong here? And if so, why?