He used We because his paper is open for PR and he was hoping to get contributions. He offered to change it and even put a disclaimer at the top.

https://news.ycombinator.com/item?id=23025809

If you'd like to submit a PR to the original paper you can totally do that and it'll be open for everyone to see. I may not agree with the author but I don't think attacking him is fair (on these points). Based on reading his comments he seems open to discourse and suggestions on his paper.