Baptismal real presence?

We're frequently told that we should hold a highly efficacious view of baptism or the eucharist because the church fathers and other pre-Reformation sources often expressed such a view. As I've mentioned before, we also find other views among the pre-Reformation sources, so we need to take those other views into account as well. Another problem with appeals to highly efficacious language in these sources is that they also used such language in many other contexts, including contexts in which modern proponents of a highly efficacious view of baptism or the eucharist don't hold such an efficacious view of those other things. See the many examples discussed in my post here on pre-Reformation views of initiatory rites. That post cites a book by G.W.H. Lampe, and here are some other comments he made in that same book:

He [Melito of Sardis] strongly emphasizes the theory of the Spirit's presence in the [baptismal] water, which, though quite unscriptural, becomes a commonplace in the Fathers and is developed by some ancient authors into a doctrine approximating to that of a 'Real Presence' of the Spirit in the font....

Again, on the other hand, the doctrine of a sort of 'Real Presence' of the Spirit in the water of Baptism is clearly expressed in the Homily on the Blessing of Jacob [attributed to Hippolytus]...

Zeno of Verona describes the baptismal water as 'aqua viva Spiritu sancto et igne dulcissimo temperata', and Gaudentius connects the miracle of Cana with the presence of the Spirit in the water and its reception by the baptized. These are, no doubt, expressions of pious rhetoric, but Cyril has a genuine doctrine of the Spirit's 'real presence' in the water, a theory amounting almost to a conception of the transubstantiation of water into Spirit, John of Damascus explains that the Spirit comes upon the water through epiclesis, and we must not ignore the significance of the common practice of dipping torches into the font

(The Seal Of The Spirit [Eugene, Oregon: Wipf & Stock Publishers, 2004], 115, 144, 211-12)