I have personally seen this same aircraft land on my home airport's ILS
with a 6kt tailwind and similar conditions. our runway is 8,595'.
6 kts tailwind should be no factor on this aircraft type on this length runway. My company has approval for 15kts tailwind landings on quite a number of tricky airports where there are no instrument approaches or terrain considerations to the opposite runways. It's no problem even in wet conditions. Let's not get sidetracked by single engine light aircraft mentality by people who have never flown jet aircraft!