It would, but only partially (although I do agree with your request that Nodes should be actual "objects" that can be copied and pasted, so you could also do this in the middle of a node graph, if you wanted to.)
But it seems to me to make more sense to add a "Prepend Node Graph" option, if only because the "Append Node Graph" option already exists.
And maybe to take the feature full circle, maybe also add an "Insert Node Graph after Selected Node", as well. That way you could get the benefits of copy/pasting nodes as individual objects, without having to actually manually do the copy/paste (e.g. if you're applying the Nodes from a saved PowerGrade, made specifically for these purposes)
This way, you can prepend nodes to multiple clips at once, with a single operation. Copying and Pasting nodes from clip to clip would only be a clumsy workaround.
Resolve Studio 18.0.2 / Decklink Mini Monitor / 14" 2021 Macbook Pro Max (macOS 12.5.1, M1 Max) / 32GB RAM