Earlier quoted context omitted.
On which timescale does something become historical? Are the Beatles historical, to you maybe not but possibly to your children? Where is the line you’re drawing? If I’m honest humans have never done the moral thinking, we largely just middle through and hope to get away with it.
Time doesn't matter as much as what is said. Fake Anthony Bourdain voice reading something he wrote seems fine to me, especially in the context of, say, a documentary. John Lennon's voice doing an ad for Vox amps seems in poor taste.
The change of medium is significant IMO. Rarely in spoken word do we expect a citation of when/where the words are spoken (barring for example, famous speeches/addresses), but in written form it often is. In this case, Fake AB Voice was reading part of a bigger piece of text - but it's not obvious what that underlying text is, making further analysis of the context in which it's spoken a bit more difficult.