The more CAIR and PBS resist showing them it just brings more publicity.
If they just let it be shown without complaints it would drown under the flood of MSM tripe that promotes the islamist/liberal view.
I saw an episode of America at a Crossroads where the entirity of controversy about CAIR was dismissed as the grumblings from a small group of conservative and pro-Israeli critics and an outright denial of any terrorist links to CAIR.