Consider this: If the next EPA administrator is just focused on deregulation, rather than deregulation, self-aggrandizement, and use of government services and funds to address their own financial problems and vanities, then we can focus our fight on deregulation, instead of Scott Pruitt’s firehose of badness. His replacement will be awful, but his resignation is good regardless.
Take the wins when they come.
Also it means Trump can’t fire Sessions and make Pruitt attorney general, which removes one of the ways he could get out of the Mueller investigation.