Specifically the change where you no longer get extra XP for doing a quest below level.

I believe that this is to help the F2P players that are not buying leveling sigils. I would think that a sigil that lets you break the level 4 cap for F2P would not drop in a level 5 quest, if you got a sigil there then it would be a sigil that lets you break the level 8 cap.

Therefore Turbine got rid of the biggest incentive to do quests below level and therefore making it (in their mind) more likely that quests will be done at level, and then F2P players will be more likely to find groups that can drop the appropriate sigils.

What do you all think about this? Am I way off base? Or is this a (fortunate?) side effect to an arbitrary change?