So it's a PCP? Ah, that changes things a bit! But only a bit. It still doesn't deal with the absence of a peep sight like the original, or the question of who might actually use it, and what for?
I think we all realised they were prototypes and work in progress. We were careful to recognise the innovative thinking - and that was before it was clear we were talking PCP!
The extra cost of a removeable barrel drives this product even further from the values of originals, but knowing it's a PCP and thus recoilless does at least differentiate it from the original.