I'd argue a less correct framework that you could actually sell to voters and politicians would be more successful by the virtue of its policy actually being implemented (not just the fun bits).

I can find you far more people who wish to abolish the fed and return to the gold standard than people who are willing to have the levels of taxation required to limit the inflation caused by funding the government with unsound money.

MMT's advocates policies would work if it wasn't for that pesky democracy and realities around campaign finance.