I only had a look at the new 'dex on Thursday, but while the rule changes are interesting I have to agree about a lot of the new fluff.  Has it moved from 'The C'tan did it' to 'The Swarmlord did it'?  And yeah, why are all these assault-spawn-sized things not easily named after existing assault spawn?

I think it'd be interesting to imagine the Epic stats for the new creatures, but I agree they should probably be abstracted into current slots.