Both men were climbing leashless. The dude in red was using umbilicals. The dude in green was totally leashless. Maybe Dude in Green feels more comfortable without all that cordage nonsense flapping about in his face, so he can concentrate more on the climbing.
I did not see a spare tool on Dude in Green, so I suspect that he climbs by a variation of the old mantra from the 19th Century, "The leader must not fall." In Dude in Green's case, "The leader must not drop his tool." He probably figures that if he were to drop a tool, then he would just lower off to retrieve it and start up again. If he loses it entirely, then he'll just come back another day. What else are ya gonna do?