Them: I see you you used technologies X,Y,Z in your last job. Me: Yes, and <I explain in further detail what that entailed> Them: Did you use <some tangential A-framework> with technology-X at all? Me: No, I used B-framework because reasons. Them: You are dead to us.
BTW, I find it puzzling you are focusing specifically on my perceived failure in the job market rather than the topic of the original post.