I don't see why Rajiv Malhotra cannot be cited by moderator or by any member if the question is on Max Mueller. Max Mueller is not an authoritative figure when it comes to Hinduism or scriptures. It is not like Rajiv Malhotra is being cited for giving an opinion on spiritual matters
Moreover HSE also includes history of Hinduism in its scope. If there is evidence of distortion by indologists such as Max Mueller, who were known for promoting Aryan Invasion Theory, then their work can be refuted by modern scholars - be it Rajiv Malhotra or anyone else