I don't see the need for a Doylist interpertation here.
Life is simple: it has no nontrivial normal subgroups.
Yeah, if you want do use Doyalist explanations for everything, it all boils down to "because money/toys/kids show." Why even watch, then?
But in this case, there are perfectly good inuniverse reasons.
Life is simple: it has no nontrivial normal subgroups.
A huge part of this show's appeal is the consistency of the characters and the world. You don't have to reach very far for a Watsonian explanation for nearly anything, so why not? Like with this Luna one, they straight up show you that she isn't spending the days in Canterlot. It's not reaching or flimsy at all to say that she wouldn't be there during the battle.
I'd prefer a Watsonian explanation, as that explains it in ways I can use for headcannon building, which I really like doing. Doylist is fine, but pointless.
Actually the show does often need Doylist explanations. For example all the random sightgags that would make no sense in a real universe.
Life is simple: it has no nontrivial normal subgroups.
As I've always said, I believe Luna spends most of her time in the Everfree Castle because it is more familiar to her than Canterlot. That's why she wasn't there during most of the finale she was sleeping in the Everfree which is far enough away she wouldn't notice.
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Ah, yeah, I guess the quick little things Pinkie does sometimes need that, but anything that has an effect on the plot is almost always explainable in-universe.
@Mio So, you don't accept Watsonian explanations on the grounds that we have to search for them and make them up, but you're fine with deriving Doyalist explanations from what you think a joke might be telling you in subtext? Both are equally presumptuous in this situation.
Why not combine both approaches? Luna missed most of the final because her livestream crashed and so when she came back at the end she asked everyone what she missed.
Life is simple: it has no nontrivial normal subgroups.
Oh, I believe it could have happened. I just don't care, and I'm not going to put more thought in it than the author did.