To your point, none of those things are important if you're just a regular consumer and taking stills, but they're all really nice to have/important if you're working on a film.
The article says they’re adapting to mirrorless cameras
> As reported by CineD, the new Air series of lenses is designed to cater to the growing number of filmmakers who are using compact, lightweight mirrorless bodies for high-end professional work.
> The IronGlass Air lenses move away from IronGlass’ standard PL-mount cinema design toward compact, mirrorless-friendly designs
I googled it and all the pages were just this company saying "Yeah! We rehouse amazing soviet era lenses in modern lens bodies!" | Which is cool, but where's the "legendary" part of the story? Like, why would you want one as opposed to another lens?
Stuff like that happened repeatedly: GAZ Chaika was a copy of Packard; SM-1 computer was a copy of PDP 11/34; Tu-144 looked just like Concorde, etc. etc.