" We have provided plausible physical and chemical information about the conditions under which life could have originated. Now it’s the experimentalists turn to find out how life could indeed have emerged under these very specific early conditions.”
Translation: We've done the easy bit. Can someone put it together?
In reality we don't have separate DNA, protein and energy handling chemistries. They form an interactive whole. Once the thing is up and working it's easy to see how advantageous chance changes can be preserved. Discovering how a sufficient collection of apparently unlikely changes came together it assemble a self-reproducing system is a different matter.