The idea is not to make the game _easier_ really, but more understandable to newbies (with some helpers to get them going; most of which have been actually now introduced).. Like someone pointed out earlier in this thread, the system should ideally be a bit more clever and warn you before you are about to make anything really stupid (like leasing a B747 that is too big for your home base airport). All these "smart warnings" are a tad complicated (but doable), but should ease the learning curve and cut down the big&costly mistakes.
And also based on my research many users tackle with some of the very basics (some concepts of scheduling for example) and there the "ready made airline" startup option should be helpful when one sees directly how it's supposed to be done (in a small scale). And really no game relies solely on written manual anymore these days - the startup should be interactive. Keeping existing players happy and making sure the new players are able to jump onboard are quite much two different things, and these improvements (and this thread) focuses on the latter really (but the first part, old players, haven't been forgotten either since the big majority of updates are things newbies don't know anything of..).