I use flowers on every page I scrap- even for the guys. I'm not designing clothing for them, I'm making a memory page, and similar to how I decorate our home for all of us I am making that page beautiful. Flowers are nature- they don't have a male/female connotation in my opinion.
I greatly struggle with kits that don't include enough variety in flowers and foliage. I like to have different shapes and colors to layer and draw interest to areas of the page. That's the mindset I use when I design my templates also.
That being said, there are all sorts of scrappers out there and the super-flat element scrappers and designers exist for each other! Lori, I don't see why any customer would complain to you about too little or too many of a certain element... the burden is on them to read kit descriptions and study the layouts and preview to kind of get a feel for what's there for them to use on their pages. As a customer, too, I understand the disappointment of opening a kit and realizing it wasn't what you hoped it would be... but then that's how we make better decisions next time we shop and choose "our designers" who click with our preferences and always have the stuff we reach for when we scrap. As a designer- we can't be everything for everyone!