It's interesting that you put the blame on the FDA. I'm not in the USA, but the effectiveness of a body like the FDA, the FCC, the EPA, FAA and all the others is directly related to how much money they have available and who is running the department; these are determined by politicians.
In other words, medical oversight depends entirely on whom you vote for and why voting is important. It's the "little" things like this, not the defence or education budgets capturing the headlines that make the difference.
Also, make this app hide the 14 page story at the beginning of the recipe and give it the ability to translate between units for weight, volume and temperature.