There is no amorphous opinion of the US government. It is many entities and many offices and many representatives, and there is no consensus amongst them on what you wrote. Not even close. There are representatives that understand and like smart contracts, there are delegates from states that have enshrined smart contracts into their legal code, there are agencies staffed and headed by individuals that are well educated on smart contracts and how to use them favorably, and so on and so forth. There are still influential adversaries also part of that institution.