Apparently by definition from the Merriam Webster Dictionary we're all indigenous.
$1:
Full Definition of indigenous
1
: produced, growing, living, or occurring naturally in a particular region or environment <indigenous plants> <the indigenous culture>
But since we're playing semantics. The CBC shouldn't be claiming the aboriginals (which means original inhabitants) are indigenous people because, it's a proven fact they came across the bearing straights millennia ago.