Before a judgment is rendered, it may be helpful to carefully consider the history of the tradition and the genesis of the current indult.
As Eastern Catholics, we tend to be conservative by nature and gravitate toward long-standing (ancient, if you will) custom, practice and tradition. In that vein, we would offer that we receive standing, not simply to suggest it is OK (because it is so in the East), but to offer the “why” for the further reflection and consideration.
In the Eastern traditions, the Divine Liturgy is first and foremost a commemoration of the glorious Resurrection. It is through the Saving Grace that we are even notionally worthy to receive the Pure Body and Most Precious Blood. Standing is a liturgical posture of joy. We commemorate the Resurrection with joy. Thus we stand (and do not kneel) during the Divine Liturgy, and stand to receive the Holy Eucharist, to receive the grace made possible by the triumph over death and sin.
Admittedly, the Western view of the focus of the Mass is somewhat different. However, the Eastern practice suggests the posture for worship and the reception of the Holy Eucharist might best serve as a reflection of the liturgical focus on the Sacrament embodied in the Mass.
The final prayer and response of the Communion Rite is suggestive:
Lord, I am not worthy that you should enter under my roof, but only say the word and my soul shall be healed.
If that means kneeling, so be it. If standing is acceptable or to be accepted as the norm, we pray our bishops catechize and instruct accordingly. Either way, the posture should be consistent with the liturgical focus of the Latin Rite Mass and the Latin Rite’s expression of the Eucharistic Sacrifice.