Thread:Paul.rea/@comment-26851667-20150803203101/@comment-4091815-20150829192406

The season one thing was the different cgi choice made in the initial MTV proof-of-concept presentation and the additional scenes filmed later and then added to that presentation when it became episode one.

As for your other question, Brett saying it is canon but we've yet to have that process explained to us. So it is canon now but they could decide to change it later without contradiction since it was never verified or explained further.