Maybe for story, but end game looks like it will be the same handful of strikes and a single raid crap all over again and since that's where 90% of the time playing the game is spent, no, I would not say they learnt anything. Also that new strike posted doesn't look like it adds a single new thing to an encounter we haven't already done 1000 times (and pretty much every single hands-on, even those who love Destiny like Datto) said that it feels more like an old bullet sponge boss again.