Thanks to LP for drawing my attention to William W. Quinn, Jr., "Mircea Eliade and the Sacred Tradition (A Personal Account)," Nova Religio 3, no. 1 (1999), pp. 147-153.
As mentioned in Against the Modern World, Quinn (who was Eliade's PhD student) remembers Eliade as a Traditionalist. This article gives more details of the relationship, generally confirming what is already written.
One interesting detail: Quinn reports that Eliade "instructed [him] to minimize [his] use of the principal figures and literature of modern theosophy during my tenure as a student." Rather as Eliade himself minimized his public use of Traditionalist litterature? For Quinn, this cautious approach was "more like a sublimation than a repudiation ... and [his] ultimate success at the university ... was the proof of its wisdom."