Isn't the point of a coat hanger to hang your clothes uncrumpled? If you're compromising on that aspect, wouldn't wall hooks fit most use cases?
For places where space is at a premium a normal coat hanger on a telescopic rod would be a viable alternative in many cases, i.e. have the clothes rotate almost 90°, and mostly overlap.
There's surely good niche use cases for these, but looking at this advertisment I don't see why I'd want to go for this particular solution.
The sales pitch would be more convincing if it was contrasted to other space saving clothes hanging techniques in existing use, rather than pointing out that the inventor was unable to find prior art for her particular solution.
There is a pretty major difference between crumpled and folded. A soft/wide radius fold isn't going to leave wrinkles or a major crease but it may still be noticeable.
A sharp/small radius fold will leave a crease but will be significantly less noticeable on most clothes than wrinkles.
And either way the crease would be along a stress point where wearing the clothes would smooth the crease out quickly.
Speaking of crumples, it's interesting that the final design makes the apparent compromise of not folding the clothes down the middle, but slightly off to the side.
But in the discarded invention pile we can see an older design that folds down the exact middle (it has springs on the bottom).
Stacking vertically does kinda get there but there are some clear downsides. You can't access clothes in the back without taking off the whole stack. And it's visually a lot worse: you're just looking at like 5 shirts flattened on the wall instead of a neat line of flat sleeves.
You don't have to take the whole stock off the hook or rack, you just grab one of the hangers and move the item to the side.
Or (in the case of that cheap AliExpress plastic dongle) pull the bottom part up and away from the wall, and detach the clothes item with your other hand.
And yeah, maybe it's less pretty or whatever, but that's my point unthread: since this isn't contrasted with existing viable alternatives the sales pitch is rather incoherent.
For places where space is at a premium a normal coat hanger on a telescopic rod would be a viable alternative in many cases, i.e. have the clothes rotate almost 90°, and mostly overlap.
You can also stack the coat hangers vertically, e.g. with cheap plastic brackets like these: https://a.aliexpress.com/_Ew6YWEt
There's surely good niche use cases for these, but looking at this advertisment I don't see why I'd want to go for this particular solution.
The sales pitch would be more convincing if it was contrasted to other space saving clothes hanging techniques in existing use, rather than pointing out that the inventor was unable to find prior art for her particular solution.