A 40-25 defeat at Bath leaves the Exiles just three games to make up the deficit, with still no word on whether they will take their appeal against their five-point deduction and £15,000 fine to the Court for Arbitration in Sport.
"We knew there would be a big opening 20 minutes from Bath and they didn't disappoint us," said Jones. "They were good, really good. But I'm pleased with the effort the boys put into defence and attack."
Still smarting after losing their appeal this week over the Tyson Keats affair, the league's bottom club stayed in the game until the closing stages despite eventually conceding five tries to one.
Scrum-half Alex Davies summed up their never-say-die spirit by keeping them in touch with six penalties and a conversion of Seb Jewell's try but Bath's firepower behind the scrum ensured they always had the edge and retain hopes of a top-six place.
Fijian Semesa Rokoduguni was the matchwinner, his blistering pace earning him a try just before the break and also creating the bonus point score for Horacio Agulla.
Other Bath tries went to Matt Banahan, Carl Fearns and replacement scrum-half Michael Claassens.
Jones added: Overall, it's a fair result but all I can ask our players is to give everything, every week and that's what they're doing. We've had five away games on the trot and just two bonus points to show for it. We've got three fixtures left and we've just got to keep plugging away.
"There's lots of spirit, lots of heart - there's lots that's good in our game. We're just waiting for a little luck to perhaps shine down on us.
"We've just got to take things down to the wire on May 4. On the possibility of a further appeal, he said: "I hope we do. But that is out of my hands."