I'm going to dig said fact out and clean it up for you. I'm doing this because facts have been one thing in short supply in this debate. For the most part, what we get are vague statements that some unnamed person committed some undefined offense sometime during a large event. But now we have a fact.
Per Vox, 765 individual people emailed Tor complaining about Gallo. That sounds like a lot, except, 79,279 people bought a copy of Redshirts in 2013. So, if you take 765 and divide it by 79,279, you get .00964. In other words, less than 1% of the people who bought one book from Tor are complaining. You'd have to magnify that complaint number by an order of magnitude to get anybody's attention.