He doesn't describe exactly what they did, only saying that every Wednesday the praiseworthy Jerusalem Arabs are erupting in anger over Israeli crimes.
Needless to say, there is no condemnation of the series of terror attacks.
Elsewhere, Jew-haters are actively recruiting more terrorists, as in this poster:
The text says "The Heroes of Jerusalem and the Al-Aqsa Mosque" with a Quranic verse 33:23 praising those who go out for jihad, some of whom were "martyred," who have remained faithful to Allah.
Another recruitment method is through Twitter, with the hashtag "#Drive4AlAqsa" encouraging more people to drive their cars into crowds of Jews.
Posters encouraging more targeting Jews by automobile are popping up all over:
There have been no condemnation of this string of attacks from any "moderate" Palestinian as far as I can tell.
(h/t Bob Knot, Ibn Botrous, Malka)