I don't remember many people other than George Lucas being happy with Jar Jar at the time. And that's ignoring the character and just talking about visuals. In fact, I remember the comparisons from Phantom Menace to the Original Trilogy being some of the strongest arguments of why practicals are better than CGI.
Very specifically, I remember the importance of practicals that kids can interact with on set being discussed on the special features of the Zathura DVD. Even at the time, it remember thinking that the director's commentary was taking very thinnly veiled shots at Jar Jar and how much it looked like Jake Lloyd and Ewan McGregor looked through him rather than at him. And Zathura was released in 2005. And the director was Jon Favreau.