Rashi and Corporealism

FKM has a very interesting Rashi. Rather than get beat to a pulp for trying to reason at this time of night, perhaps you can give me some insight into why this hasn't received more attention?

A Tanna stated: ‘This [that one may read sitting] is not the case with the Torah’. Whence this rule? — R. Abbahu said: Because Scripture says, But as for thee, stand thou here by me. R. Abbahu also said: Were it not written in the Scripture, it would be impossible for us to say it: as it were, the Holy One, blessed be He, also was standing (Megilah 21a, Soncino Tran.)

To which Rashi comments:

כביכול נאמר בהקדוש ברוך הוא כבאדם שיכול להאמר בו כן

My Talmudic Aramaic isn't the greatest. What am I missing?