http://eu.battle.net/wow/en/forum/topic/1849924991 "Unholy pres does affect your ghouls energy regen, attackspeed and your gargoyles casting speed." but its not enough proff, thats why we asked in retail forum with a ticket..
The GM miss with DOT because of his memory but he didn't missed about ghoul haste benefits for speed attack and energy regen. Get proffs where says ghouls is not affected by haste rating
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I agree, DOT's are not affected by haste, just affect pets speed attack (gargole and ghouls) and energy regen for ghoul. Faster ghould attack speed and energy will helps alot in pets dmg, more hits, more claws, more preasure.