Right theory but wrong pew....they INCREASED the credit so they are getting the credit increase now. So, their tax, if they pay any, amount stays the same.
Nope! To pull off your scenario, the goobermint would have had to double the amount, then they could have skimmed off the new half as monthly payments and made it impact-neutral on the tax return.
They only increased the CTC one-third, but they're giving away half in the monthly payments! JACKPOT LOL!