And now they (both the creators and casuals) are saying the franchise IS about the suit and any of the characters can fill the role.
So it seems that the major two takeaways from the Casual audience on that scene was
1. " is this your king meme" of Michael B Killmonger tossing Tchalla.
2. That the Black Panther is just a mantle and anyone can have it.
I'm not saying that was the intended goal. But that was certainly the effect. Maybe a thing like that should have been saved for future movies instead of the introductory movie