Of course she’s pretty (as is pretty much everyone on TV), but she’s not somebody that I would have noticed as being particularly mesmerizing. She must have a particular set of features that hit your personal buttons.
Well, since you are asking, let’s just say I did not have the same reaction as you. Instead I actually commented to someone that I was surprised they cast such a non-standard-pretty (OK, funny looking) person as it draws attention to itself (to me anyway).
Of course it’s a stupid reason to give someone a phone: That’s the point. The guy is just looking for an excuse to buy iPhones (plural, even), because he loves them so much.
As for the actress, I can see what the OP is getting at, because she almost (though not quite) pushes my particular buttons, too. She doesn’t meet the conventional standards of beauty, but I’m pretty sure that it’s an established thing that people with unconventional appearances, while they appeal to fewer people, appeal more strongly to those they do appeal to. And given that any given product is going to have multiple commercials, and given that people are going to most strongly remember the commercials that do appeal to them, and given that only one commercial needs to work on any given customer, it makes a lot of sense to cast unconventionally-attractive people in commercials.
My reaction to the commercial was “what message is Apple trying to send here? iPhone – the phone of socially clueless needy dweebs?” I mean, if so, I should probably get one, but still, it’s a pretty bizarre message.
Woman: Nice phone! Thank you! Uh… where do I plug in my headphones?
Man: You can’t. Apple decided that it would be better to delete the headphone jack so they could make the phone 2mm thinner.
Woman: What? Does Apple know that headphones are like, a key feature of a phone/music player?
Man: Well, you just need to plus in this dongle…
Woman: Oh yeah, a phone 2mm thinner with a big dongle hanging off it is SO much better. Sorry, but if this is your idea of good design, this date is over!
Then the kicker: the man starts crying, and the camera pans to his face and we discover it’s Tim Cook.