I thought my opinion was clear in that regard, and as you appropriately characterize, no questions as to bias or motivation or reasons to misrepresent quotes would be allowed in. There I believe we would decidedly fly in the face of established case law.
The speaker was intentionally vague in the comments they are referencing
( z1 vague :domain ( z2 person :ARG0-of ( z3 speak ) ) :location ( z4 thing :ARG1-of ( z5 comment ) :ARG1-of ( z6 refer :ARG0 ( z7 they ) ) ) :ARG1-of ( z8 intend :ARG0 z2 ) )