Buzz Rickson denim pants are the same - I put it down to the fact they are trying to be just so authentic they've replicated exactly the cheap materials and workmanship of the austerity wartime models and mass production methods they base their things on.
Speaking of which, Full Count just released a frankly ridiculous set of WWII 501 jeans/Type 1 jacket. They did not hold back with the loose thread ha.... I ordered both.
I've had the same with a pair of Buzz Rickson shorts I bought. Plenty expensive but buttons keeps falling off. Just re-attached to 4th one