I read that they need to use gigantic manly man hands for the gigantic phones, because otherwise people would realize that it's a "two-handed" phone for most of us mere mortals, that's impossible to use with one hand for anything but the most basic tasks.
Marketing for phones is forcibly (over) diverse and carefully not balanced but constructed than for any other product category.
They do not market objectively to the customers. They market by emotion and political correctness.
Just try to find a straight, white male, dare I say, two white male friends in a Google ad.
How can that be true when there's only 2 phone OSes of note and one single company sells half the phones in the US? There's not enough diversity in the market to create the conditions for diverse marketing.
If anything it's a race to the middle. When there are 2 shops in town, they tend to become more similar not more diverse.
And note that this was a serious criticism a few years ago where it was a complaint that all things are designed for 6' men by default. I don't know if that is still the general belief, but it got a ton of traction for at least a short while. I would be surprised if there aren't a fair number of folks that still think that.