It’s all about the total number of tanks on a raid team. All the tanks can fill the MTO, with very little down side on any of them. Warriors may mitigate a slight bit more (ever so slight) but the self healing of knights surpasses that by a large margin, even on raids. Knights (both of them) have greater utility to a raid than Warriors. Warriors bring dps, I guess if needed, but that is better suited to add another dps class to the raid. The real question is why do raid teams still carry warriors? The biggest problem with SKs is there are a lot that play them, but there are VERY few who play them amazing. An amazingly played SK can show you how powerful the class really is. Sadly most of the EQ community rarely sees it.