I’d say re-introducing it, in defiance of custom and Tradition, after, what, 1500+ years(?), counts as a novelty. Especially when there is no spiritual reason for doing it that I can see.
The real question is; Why drop COTT, kneeling, from a priest, for it?
All the changes to the Mass make sense if you want to emphasise the communal meal aspect. AFAIK, it used to be called, primarily, ‘The Holy Sacrifice Of The Mass’. Now it’s ‘The Lord’s Supper’ or ‘The Liturgy Of The Eucharist’. Altogether more genial.
COTT, kneeling, makes no sense at a meal. CITH, standing, from a laywoman, does.
Then people complain that Masses are more casual.** Well, that’s because everything occuring at them is cueing the participants that it’s a casual affair:** Edited text, versus populum, unvested laypeople involved, lightweight sermons, stylized vestments, folksy hymns etc. CITH is just part of the package.
The usual rejoinder is: “We must cathecize people more”. Well, you could do that in and by the type of Mass you say. Learn by doing.