To put sample sizes into perspective, you've looked at a couple hundred maybe?

When devs do a test sample they pull datasets in the 500,000 to 1,000,000 range. The RNG engine that crafting uses is the same one as everything else uses, stop and think about how many random elements there are in the game and multiply that across what everyone is doing in the world and DC. Think about how many buttons are clicked in those few seconds and you'll realize this isn't 10 successive fails in a row, this is 10 fails out of tens of thousands in the last 30 seconds and you just got unlucky to get bad results while others may not have.

RNG is RNG.