I was referring to those who fight tooth and nail, not to someone who happens to think it didn’t happen.
What was printed in 1960 is a Likut of old Sefarim. I happen to have a copy of this particular Sefer of Reb Zalman Aufhaussen. It doesn’t say that it was a live debate. Read the intro. A guy Samuel (which Reb Zalman spells in an interesting way) Brenz made a book called Shlangenbald and Reb Zalman Tzvi put out this Kutres as a retort. You can look up these people on wikipedia.
By the way, how do you prove something didn’t happen? Some of what people consider proofs, I consider a joke, as I mentioned earlier. So, all we have is tradition. This, I won’t knock away with a joke.