Like most of the best climbing innovations this lanyard tool is coming from the mind of a climber attempting to overcome something in their own climbing experience that bothers them. It's not coming from some mega gear company etc. , and yeah, we're spoiled on cheap mass-produced gear. The good stuff costs money to make on a small scale. No one has to buy it.
I fly a 15' lanyard, I let the tail hang when in use and move it around when I have to to keep it out of the way. My harness belt space is currently booked for the unforseeable future, the Keeper would have to go on the "You'll have to wait until an opening occurs" list.
Looks to be very well designed, I'd like the frame of mine carved out of Honey Locust heartwood with super tight grain. I'll have to do that myself, that's a whole 'nother back ordered personal wait list.
-AJ