All indications are that the decision to make/air/treat "The Team Unites" as the 'premiere' was mutually made by both Saban and Nickelodean (as both entities assign the '101' production code to it)
You're still not hearing me. Numbering an episode 101 only
addresses the production order. It's how the people actually filming the thing refer to it for their convenience, regardless
of any intentions about broadcast or story order. It has nothing to do with whether an episode is intended to be the premiere, because it applies to the production process, not the broadcast. You're reading more into the production number than it actually means.