I did something similar but for non-classes based language (Go) and in 3D [1]

But I saw it as next step towards shifting programming from sitting and scanning texts into something more tangible, where developer has broad overview of software, and can work on smaller parts while seeing context of how these parts are connected. Ended up concluding that this stuff should work in VR.

[1] https://divan.dev/posts/visual_programming_go/