Correct me if I am wrong, but looking back it is not surprising to decrease in rates and pay in USD. The price rose steadily in the following months, so that if the change had not occurred, the weekly payment could have almost doubled.
Yeah, it's just not sustainable or practical for companies to keep paying those rates when the value of Bitcoin goes up significantly. I don't think it was all that surprising in the first place (in fact, I was surprised it didn't happen earlier).