((It's practical-ish, in a situation where the Federal Government is already majorly involved in banking and the Fed is as much an institution in reality as it is in theory. Right now, we're in a situation where the Fed has, in actuality, done close to nothing since it was founded thanks to being apparently unnecessary due to the boom, and not wanting to act because any act was likely to launch a torrent of attacks by a president who was as anti-fed as they come (Jarvis). In reality, it's an untested institution that has only an on-paper distinction as a Central Bank of sorts. They essentially haven't even printed a single Federal Reserve Note since 1917. As paper a tiger as they come.
The other, bigger thing is this: You should be happy you have one banking bill being put to a vote. There is absolutely no in-story reason for the sudden increase in will to shore up the banking system. This entire flurry of legislation is based on two things that rest on the role-play aspect being put on the back burner a bit; firstly the knowledge that a downturn is on the way, which realistically no one would have, especially in a situation where the US has had one recession since the civil war. That doesn't really speak to there being a noticeable cycle in the US economy. Secondly, the fact that we, being from the 21st Century, see this banking system as abnormal and dangerous, when all your characters would in fact consider it the norm, and the Big Three and Fed to be the anomalies.
In other words; the BSSA is as far as pre-GD banking regulation can go. In-story, all the NPC characters are seeing is your characters suddenly, for no apparent reason, going crazy about reforming and regulating a banking system that has worked fine since time immemorial and continues to do so. I hope you can see why this means that the BSSA is the only regulation being considered by Congress, and even that as mostly a courtesy to the incoming President)).