It cannot work... it is a bandaid just like all the rest of the things Bessent has done thus far...
He was hoping to build confidence and instead sapped it. One of the reasons why Japan has to be bailed out is because of the carry trade seeking higher yields in the US. To fix this if Japan raises rates at home makes those who've money tied up would want to exit international markets that money is tied in... so, by extending this Bessent gets to borrow at higher interest rates, buys cheaper Japanese yen... a double loss... only to buy time and keep the bond markets solvent and liquid.
But for how long?