Stuff like this is given to players who have somehow lost all thier gear to to some unfortunate circumstance. A couple of years ago my account was hacked and all the gear on my druid was gone, the GM's did an investigation and after finding out that I wasn't just trying to get free gear, they gave me a kit containing level appropriate gear similar to this stuff.
I am trying to confirm this...but I do not know. A logical guess would be: If you somehow let your corpse decay after the seven days (such as stuck in VP) and lose all of your equipment; this would be a free "leg up kit." i.e. Verant doesn't want level 45's to quit cuz they lost all of their gear--especially with EQ2 so close.