The reason though to be for Unit 06 to go after Lilith is Seele is willing to risk anything and anyone to follow The Dead Sea Scrolls and to put the earth back to its normal tilt.
Stuff like this always reminds me of how much I focus in on the things that I love about Evangelion and completely gloss over the stuff I don't. The interactions between the characters and the drama it brings as well as the action scenes are things that I love and I'm quick to forget about all the nonsensical mumbo jumbo like the stuff in the quote.
Anyways, third movie should be awesome. I want the tone to be the same as the series but the actual content to be radically different. 1.0 was a huge disappointment for me because it was just the old show in HD, 2.0 was a huge step in the direction I wanted, and just from watching the preview for 3.0 it seems like it's going to be unrecognizable from the story that the series followed. I look forward to the US BD release, although it will probably be some time in 2014 (JP theatrical late 2012, JP BD in mid 2013 at the earliest, US BD coming 11 month later going by the release of the prior films)