I don't see anything particularly sexist nor insulting about a company having a target demographic. Most companies that sell products do.
That said, I was thinking along similar lines a few weeks ago. I was at a home improvement store browsing the power tools for a jig saw when I came across a hot pink drill kit.
"Hot pink?" I thought to myself. "Did they see that the number of women interested in home improvement is rising and figure that women are simple enough to fall for that? To buy your shitty drill just because it's pink?"
Feeling grumpy, I told my mom about it over lunch the next day. My mom bought an old foreclosed-on house in BFE Appalachia last year, and took it upon herself to renovate it -- it went from complete, unlivable dump to nice, cozy home as she replaced the floors, the ceilings, the roof, the cabinets, all of the bathroom fixtures, all of the doors, etc. My mom is no girly-girl and has never been afraid to get her hands dirty, and she's physically stronger than most men I know (including myself). To my surprise, upon hearing about the pink drill, she declared, "I want one!"
Let me tell you, my mother is far from simple. Beyond being strong, dedicated, and resourceful, she's also very intelligent. I know that she knows that the company doesn't actually care about women doing home improvement and is just trying to make a quick buck by "tapping" a market that's already been tapped by your typical orange or yellow or black unisex drill. But you know what? If you like something, you just like it, even if it happens to be stereotypical for you to like it. Stereotypes exist for a reason, and businesses would not be constantly wielding them in attempts to appeal to their target demographics if they didn't work in the market. There's clearly no ill-intent behind it, just business.
If I were out buying eyeglasses and saw an advert for some new sort of lens or coating to suit people who stare at computer screens all day, and the advert featured a nerd typing furiously on a computer with a fake lightsaber mounted on the wall and a set of D&D books on the shelf, should I be insulted? Or should I be glad that someone is finally making glasses for me? Chances are, I'd be excited. I might even wait around for a bit to see if I can find a new cleric for my party...