“There is nothing positively asserting anything about the founding of the Church at Antioch in this passage.”
Well, that’s your opinion, but if Peter was soooo important to the church at Antioch, one would think Luke would have mentioned him, just once.
It's not my opinion; it's textual fact. "Why" is irrelevant.
Now, BD,
you know that
the RC magicsterical loves to
ARGUE FROM SILENCE.
They have little better to argue from!