While FERC and the gas pipeline industry believe that the policy will be tweaked, I see some serious NEPA challenges ahead. The issues seem similar to what FERC's hydropower program faced when the Commission was asked to analyze cumultive impacts in the mid 1980s.
Russo, T. (2018, May). FERC's 1999 pipeline policy could face environmental headwinds. Natural Gas & Electricity 34/10, p. 18.