That seems fair, but the question still remains why the contrast is posed in the way that it is such that the OP can summarize it in that way (although it is not exactly accurate or most nuanced, as noted). We might also ask, then (on Voice In The Desert, not here...), why others did not develop this as the EO did, when we hold many other things in common in the area of proper veneration of the Theotokos. Is this a later EO tradition in the form found in the OP? I mean, it specifies 807 AD, which is 'too late' for my taste (in the sense of having to care about it; had it not been brought up here, I would've never heard of it), but it still deserves some sort of answer.
And we all hold to the notion of Christ the Just Judge, I would think. Remember the Compline prayers of the Agpeya, which mirror this dynamic (contrast the litanies: "Behold I am about to stand before the Just Judge, terrified and trembling because of my many sins..." and "O pure Virgin, overshadow your servant with your instant help..."), also without saying that St. Mary is somehow holding back her Son's stern judgment or whatever.
I dunno. I like where you're going with this, but I'm still confused.