See, this is your fundamental mistake.
Mahou shoujo is not the same thing as shoujo. Okusama wa Mahou Shoujo can be classified (superficially) as "mahou shoujo" as well, but that doesn't make it shoujo. I really wish you'd seen that show, it would clear up a lot for you to see "mahou shoujo" in the title of something like that.
"shoujo" appears in many, many word combinations. Jousei used the same character but means a series aimed at older teen to adult women, as opposed to shoujo's target being young girls. Bishoujo also has "shoujo" in it, but the whole bishoujo movement arose from eroge, visual novels, harem, and that wide, varied subset of manga and games aimed squarely at
males.
Mahou shoujo means it has magical girls. Period. Shoujo means it's targeted at girls based on the pre-anime source material and/or intentionally marketed at girls where such source does not exist. Nanoha has magical girls (though as I point out, they pretty much cease to do traditional magical girl things within a few episodes), but it is not shoujo.
Magical girl is a show theme or genre. Shoujo is a target demographic. "Magical girl" is closer to "romance" or "slice-of-life" or "sci-fi" or "bishoujo" or "mecha" or "sports" or "comedy". They're elements that are, by themselves, independent of the target demographic of the show. Some are narrower, some are broader, and they mix and match in various combinations.
You can have a magical girl slice of life shounen show, a sci-fi romance shoujo show, a sports jousei show, a space-based bishoujo comedy seinen show and so on forever. (Remember that shounen and shoujo are only 2 of the 4 main demographics).
Are most anime and manga with magical girls intended for a female audience? Yes. Just like most baseball anime and manga are intended for a male audience, but you'd be just as incorrect to assume that an anime centered around baseball
has to be aimed at males.
If you try to put mahou shoujo on par with shoujo, you'd be making the former a
demographic. You'd be saying "this show is targeted towards girls with magical powers", and as much as we'd love to believe otherwise, there is a distinct lack of real magical girls in modern day Japan. Their purchasing power would not make Nanoha the success it's been =P
I understand that Japanese terminology can be confusing to those not used to it, but I really don't appreciate how you read my entire post and then plugged your ears and went "Nope, I'm going to make my own definition up against all evidence to the contrary"? Why didn't you address any of my points? You can't just end every argument with "agree to disagree" to avoid admitting you were mixed up.
That's really not cool, especially since you seem to run some sort of review site. I think you take on a little more responsibility in that case, because you being misinformed is one thing, while misinforming tens, hundreds, thousands (however popular it is) of others is quite another.
So, tl;dr: Do you now see that mahou shoujo and shoujo are two different sorts of concepts, and the existence of girls wielding magic in a series does not mean said series is automatically targeted at a female Japanese population?
Edit: here's a good example, since you like Wikipedia:
Cutie Honey (キューティーハニー, Kyūtī Hanī?, also spelled Cutey Honey) is a Japanese media franchise created by Go Nagai. Cutie Honey first appears on volume 41 of the 1973 edition of Shōnen Champion. The titular character of Honey is considered the prototype for the transforming magical girl. According to Nagai, she is also the first female to be the protagonist of a shōnen manga series.[3][4]
Note, Go Nagai is the *creator*. Cutey Honey would never, ever be called shoujo. By anyone. Well, anyone sane. But she is undeniably a magical girl. One of the most historically important ones at that!
To clarify: I *like* shoujo. I'm not trying to make Nanoha "not shoujo" out of some misguided attempt to deny being into shoujo. But the facts are the facts: Nanoha is not a shoujo series. I'm sorry. It's just the truth.
And if you're determined to think I'm untrustworthy, here's someone else commenting on the trend of magical girls made to appeal to male audiences.
I don't always agree with him or even everything he says in this article, but the main point is wuite relevant and correct:
http://www.animenation.net/blog/2007/10/...rs-a-new-trend/