Check his original announcement. A bunch of people were whining about him mentioning prayer.

I saw one that mentioned prayer, and it wasn't mad at him for praying. It was mad at his support for Isreal (no idea what this guy's stance on that is, but it wasn't mad at him for praying, just for praying about what that person says is the wrong thing.)

Yeah... the only comment mentioning prayer is mad at him for (what the article they post claims) is supporting an anti-BDS bill...