HHSMTB's

wow. that is nice.

nothing hiphop on that yeti. Maybe belongs to some super boring enduroslave hound

Single front ring and no chain retention?

That either gets ridden on groomed smooth ass trail centre shit or the chain falls off every 5 minutes. I have my opinion on which it'd be.

Don´t think so. I reckon it will work as Sram XX1 group chainrings: no ramps and bigger teeths to avoid chain falls.
I believe this yeti is owned by one John Prolly of P.I.N.P. fame so I wouldn't say super boring enduroslave, the chainring is a wolftooth they're the bomb they don't drop chains.