Based on the source, yes.
Col Elting put thirty years of research into that book and he and I discussed it at length quite a few times over ten years. If you don't accept it, it is your loss. And if you disagree with it, then find material that challenges the information in Swords. If not, then the point is moot.
And it was unnecessary to make that derogatory comment, and here I thought we were getting along-agreeing on some points even.