[tokai]

Those helmets are not safe, were recalled, and the company is going through a bankruptcy.

[matthiasl]

Assuming you're refering to Hövding, the recall was overturned on appeal, back in 2023, but the company went bankrupt anyway:

https://discerningcyclist.com/hovding-bankruptcy/

In some types of crashes, the Hövding had better crash performance than ordinary helmets. In others it performed worse.

More generally, it may be that someone comes up with a design which incorporates inflatable sections which is more successful.