Jorg Sprave is an inspiration to every kid who made his own rubber band slingshot and dreamed of building catapults and crossbows when they grew up. I'm only aware of two models of 2 shot crossbows on the market, the dual bow Excalibur Twin Strike crossbow, and the PCP dual arrow AirSaber Elite rifle. I'm not counting the after-market arrows which can be fired from dual shot air rifles. Any dual shot repeating crossbow or arrow rifle offers an obvious advantage in hunting situations compared to a single shot.
I had an AirSaber for a couple of months and still have a 50fpe Air Javelin Pro. The AirSaber offered 2 shots at ~160fpe so it's a serious hunting tool, but at 7lbs & 41" it's on the large side for someone my age. A smaller repeating 6-shot 140+fpe pump action air crossbow, based on the established compact AEA HP PCP pistol/carbine, would be a much better tool for hunting. And likely to make waves in the air archery market.
A large part of GoGun.co's target market is in Germany where firearms are restricted, so their commercial products are often developed with home defense potential in mind. And this product would suddenly, and for the first time, move air archery into the practical home defense products sector, along with all of AEA's regular semiauto PCP products.
People like me love new airgun technology for its own sake. We'll be waiting in line to try of GoGun's new (in 2023?) 6-shot PCP arrow repeaters as soon as they are released. This development for air archery is somewhat similar to the recent development of 10-shot repeating magazines for break barrel rifles. It suddenly jumped an established product line up to a completely new level of performance.