You guys do realise they don't actually test anything they put into the game, right? They say they do, but they don't. It would have taken then less than 30 seconds to spawn 50k into their inventory and realise it doesn't let you carry that much.
I am 100% certain someone on the dev team comes up with a cool idea, they high five for 10 minutes, throw it into the game and forget about it. There are many many more examples of this currently in the game. One example is the reload perks from the firearms tree not working. Sure, the animation is faster but you still sit there waiting for the gun to actually register the bullet, and most of the time the little reload mini game doesn't sync up with any animations. Just 1 reload would have proven that to the devs, but nope, put it in and fix it later.