Earlier quoted context omitted.
The most recent episode of the Neoliberal Podcast covered this in layperson's terms. Despite being pro-helicopter money, they point out that the bureaucracy to do so isn't in place and that there isn't precedent/procedure for FED action of this kind. So for now the FED is using all of the tools it's used to and waiting on congress to act, hopefully with helicopter money but it will be slow even if the current argumen…
Is this, in some sense, by design?
Helicopter money has many other desirable characteristic, like a much short lag to get into the real economy (so the government can adjust it with an easier to control bullwhip effect) and its wide distribution meaning that it distorts less one market or another.
There are very few reasons to explain why a government would make money creating so unconstrained that banks actually do not create as much as they can, and allow interest rates to go negative, instead of going for the helicopters.