Orthodox theologians undoubtedly most appreciated Augustine’s sacramental theology. St Nektarios of Aegina (1846-1920), who published a new edition of the Kekragarion of Voulgaris, was in favour of Augustine’s teaching about the validity of the sacraments of schismatics and heretics, and therefore he insisted on this approach of economy (oikonomia) to the Western Church, rather than the approach of ‘strictness’ (akribeia) according to which the non-Orthodox sacraments are null and void. For such an attitude, Nektarios has been accused by some ultra-conservative Orthodox circle of being latinophron kai oikoumenistes (‘Latin-minded and ecumenist’).
Source: Vladimir Cvetković, The Reception of Augustine in the Orthodox Church (since 1453), in: Karla Pollmann et alii (eds), The Oxford Guide to the Historical Reception of Augustine, Oxford: OUP 2013, vol. 3, p. 1484.