Here's the thing Hanna. Perhaps Haaretz was attempting to distinguish between Imams, who speak of religious matters and preachers, who preach about anything they want. You could take this as respect for the Islamic religion and its followers, and an attempt to separate the blood-thirsty preachers who know nothing but anger from Imams.
Taliban attack police HQ in Kunduz (AP)
from the article: Hamas preacher defies PA gov't ban on incitement in mosques