All interventional trials have used CBF to define the ischemic core and TMAX to define the ischemic at risk parenchyma. Using that convention, this is a matched defect without penumbra (this case was before the era of RAPID and if you use the older convention of CBV for ischemic core and CBF for at risk parenchyma, the core is smaller than the at risk parenchyma and the patient would be considered for intervention).
Interpreting the CTA is tricky. There is for sure a right carotid terminus occlusion as you can see the abrupt cut off of both right PCoM and right ACoM (in addition to seeing the strong evidence for clot on non-con CT). While there is lack of opacification of the right cervical ICA shortly after the bifurcation (orange arrow), this can be entirely flow related due to the upstream occlusion and resultant extremely slow flow.