Firas pretty much said what is pretty well known amongst the MMA community that's not full retarded and has the ability to truly break down a fight objectively and without bias. He said that Conor will have the boxing advantage but with his wide stance, RDA's super dangerous leg and body chops will be something to be seriously worried about.
He definitely thinks RDA will dominate the clinch and the grappling, so without directly saying it, if you put it all together he's saying Conor's only shot is to avoid the clinch, avoid the takedowns, stay on the outside and look for openings. Because anywhere else, RDA is at a huge advantage. He also says if it goes past 1 1/2 rounds, RDA will win it. So in his opinion and mine as well, if Conor can't get it done early, he's fucked.