That is a great photo! And it would be fun to experience. But I think I'd be afraid to wear one around here. As I am allergic to bees & wasps, and we get tons of bees and wasps at hummingbird feeders around here. I wouldn't want to be attracting bees and wasps to my face! LOL
But I love the concept.
Around here where several of my neighbors feed them, hummingbirds will follow you if you wear a red baseball cap, and buzz your head trying to look for food. I've had them run into me a few times too, as they dart from one feeder to the next.

One of our dogs does this on the steep hill portion of our yard. He loves it! I'm not talking about a little scooting around in the grass. I mean full sideways, and on back sliding all the way down. I thought it was a puppy thing that he would outgrow, but years later he's still doing it. He looks like he has a lot of fun doing it. I've never figured out how he manages to slide so well in dry grass. But he does. He will even try to slide down the same way again, because he goes faster in spots where he's already temporarily smushed the grass down. It's quite funny to watch.

This person may have started a business making these 4 years ago. But she didn't invent them 4 years ago, which is sort of what this post implies. This product has been around for at least a decade (that I know of personally), and probably much longer than that. "Hot Pants" brand has been available for at least 10 years. And there are other manufacturers that make frilly versions as well.

I am not fond of dressing up dogs, but a simple useful one is very very handy if you have a large dog in heat. It keeps your house, car, etc very tidy. I also know of people that have used them with good success in issues of urinary incontinence particularly in older house dogs.