If the phenomena you are highlighting is that Animal Welfare gets a smaller share of funding than people would prefer, it seems very strange to 'blame' AI messaging, since AI risk also gets a smaller share of funding that the surveys suggest would be preferred. Based on your methodology, the phenomena to explain is why does global welfare get so much more.
There doesn't seem to be anything gained by being negative about veganism though, and not doing that would seem robustly better.
Being seen as honest about the problems with veganism raises their credibility with their other recommendations. "Oh yes, we're not like those annoying people you've already rejected, we have a different view".
The context of this quote, which you have removed, is discussion of the reasonableness of wages for specific people with specific skills. Since neither Nate nor Eliezer's counterfactual is earning the median global wage, your statistic seems irrelevant.