Let me put some context around the target market for these…
They are not for people that commute on a gravel bike in all weathers, or that go to trails on a full sus 29er. They are for people that live in the city, have far too much disposable income and want to commute a relatively short distance without messing up their expensive hairdo. These people will, if male, be on a single speed and (if female) be on some sort of basket-fronted city bike.
The people that use them want the safety net of a helmet, but realise the use of one is statically small, even in the city, so don’t want to have a helmet. As they are expensive, they are also a way of telling people you have the spare cash to buy one.
In 18 months of cycle commuting every damned day through Stockholm (even in winter, which was cold), the above is true. People that commute by bike on proper bikes use a proper helmet. People that wear too short trousers and no socks, or spend more on their hair each month than I do on a new rear mech, wear one of these.