That was for the initial release, never have I seen it for the DLC. Cite your source,

We understand that Sony paid money for this content but it was Activision that made the deal. Im pretty sure the creative guys at bungie are not to happy that half of the community wont be able to get new awsome loot or kill a strike boss they spent a ton of time animating im sad for the developers more then I am for us most of the guys at bungie are gamers and have the gamer mentality they want us to enjoy their creation, their world but we cant do that because of ridiculously timed dlc (and i do own a ps4 and xbox one so im comeing from both aides of the spectrum)

A strike boss they spent a ton of time animating?!?! Wtf bosses have you been playing?! "So for this archon priest....we have to come up with a design." "Let's just use a captains skin and make it really big. Ready to go to TGI Fridays for some jalepeno poppers?" "Oooooh jalepeno poppers."

Do you have any animating experience with AI and terrain for it to walk around?

I'm not in any means saying it's easy, I'm saying they didn't put any effort into visually presenting a fresh experience with any of the bosses. And no, I don't need animation experience to use my eyes and see a larger version of a mob, with the same weapon that mob type uses, with the same movement mechanics used for the regular version of that mob.