Our dating of the Indo-Aryan element in the Mitanni texts is based purely and simply on written documents offering datable contexts. While we cannot … - James Patrick Mallory

Although [the domestic horse] has occasionally been recovered from Harappan sites, for example Surkotada and Kalibangan, no one would credit the earlier Harappan culture as exemplifying the horse-centred culture of the Vedic Aryans.

In any event, all three models [Anatolian Neolithic, Near Eastern, Pontic-Caspian] require some form of major language shift despite there being no credible archaeological evidence to demonstrate, through elite dominance or any other mechanism, the type of language shift required to explain, for example, the arrival and dominance of the Indo-Aryans in India.

In his earlier works, Mallory himself, acknowledged that theories pertaining to an Asian homeland had long fallen out of repute, "but one wonders if this is not just partly due to the ridicule heaped upon them by their opponents rather than reasoned dismissal" ... "all too often has one discredited line of argument been used to ridicule another theory which came to the same conclusion" (Mallory 1975, 56).