Letting the CFTC ease into the new regulations by passing legislation telling them what to do is the best way to ensure that these reforms actually happen helping U.S. farmers, ranchers, and other participants in the derivatives markets.
The CFTC is trying to prevent derivatives from unravelling the financial markets again and causing another crash, it shouldn’t be told how to do its business by Congress. Plus, it'll just get vetoed even if Congress passes it.