At first it just seemed like a happy coincidence — a Hollywood agency mogul supporting a Hollywood corporate merger. Ari Emanuel published an op-ed in The Wall Street Journal last Tuesday saying David Ellison buying Warner Bros. was a good idea and that those 12 Democratic AG’s who have sued to stop the deal were on the wrong warpath. “The attorneys general should drop this case and get back to enforcing the laws as they are written,” the WME chief wrote, as he extolled a Paramount-WB tie-up and said it would be good for the business. Sure, Ellison had committed last year to pay Emanuel’s TKO $7.7 billion to broadcast UFC fights, a fact he…