As someone who is solidly mediocre at brazing (haven't had a joint fail, but they aren't always beautiful), and not good at all at welding, I'd probably put my vote in for calling it on that Huffman too (those welds look worse than mine, and that's saying something!)
I say that because it looks as if during the repair, the whole rear triangle may have come off, and if so, it may not have gone back on square. I know that that is hypothetical, but once you throw in the mid-yube repair of a chain stay, it seems like you could spend a lot of time and energy repairing a frame that might break again on the 3rd ride. This constant breaking of the frame is what kept happening to my 1970's Swing bike that I bought off the CABE in the 90s as a 13 year old, also my motivation to figure out how to construct my own Frame, which has seen 50+ mph and is ugly, but very solid.
If you are curious to sell the whole blue stumpjumper frame, fork, hs, seatpost and maybe another bit or bob, I sent you a PM!