146/RJ has a 15 knot tailwind limit.
Even with 20 knots of tailwind and a wet runway you should be able to land in 2334m with full safety factors and room to spare. Landing charts have the wind factored by 50% so you should actually be able to do it with 30 knots of tailwind! I don't think you can blame it on a reported 15 knots tailwind vs an actual of 20 knots or something.
Wing does look suspiciously clean