I'm pretty sure luck 1-5 are exactly the same as they were. Previously, you had about a 5% chance to find items up to level 6, when suddenly you'd have a 10% chance (or possibly more) on looting a container to likely find an epic/rare, etc. Now it slowly scales up from level 6 to level 10, increasing by .5% per point or so. So it actually made luck 7-10 a factor (whereas before level 6 was the highest), and ultimately the nerf was fairly minor, at the level of luck that probably was somewhat silly. An epic/rare in every 10 containers is a bit much.
I do hope they address the horrible scaling, though, so people don't feel like luck is needed for constant upgrades.
