Yeah, it felt like a weird statement especially coming from the Wakandan who we mostly see as the furthest from Wakanda's high-tech society (him being more traditionalist/attuned with nature wearing animal skin pelts and shit). In the skirmish all he does is try to attack Namor, his weapon gets effortlessly snapped apart, and he gets punched into a small building (but miraculously he doesn't have a hole punched through him or even broken ribs, only his flimsy armor broke). The one thing I appreciated was Namor having to be nerfed by exploiting a de-hydration weakness for Shuri to even stand a fraction of a chance. But I definitely felt there were some issues with properly establishing Namor's power where they had to make him be able to singlehandedly dismantle Wakanda but also not kill certain important characters in the process (even though he showed perfectly willing to kill when he killed Shuri's mom).