This is how they do in the Deutschland. Common with sports climbers as it reduces wear on the rope when falling all the time. (threaded through the belay loop twice
Edwards finish seems like a clusterfuck. There is nothing wrong with the Yosemite finish you just have to do it properly.
As long as you don’t just do a bowline with a stopper not. If you are building an anchor and clip it into the rope loop, if someone fell it would invert the bowline undoing the bowline