I can't see the real benefit, it takes more space and takes longer to view, at least from those screenshots. I did briefly consider once upon a time - aka a long time ago - a flowchart editor, but it's definitely not as intuitive in most cases as the current editor.
It seems like a good idea to look at, but I think in reality, it would be impractical. If you have 100 events set up like that (which isn't all that many), you'd have a massive, sprawling, tangled mess, which you'd have to scroll for miles over.
Nodes are good for things like making procedural textures in Maya or something, not necessarily for code. I would much prefer the event system. It's more like a traditional block of code, only you don't have to worry about things like syntax and whatnot.
i would also like construct to stay the way it is regarding this feature. i've had my fix of that nodey-linkey-paradigm with vvvv. it's pretty cool, maybe you can have a try at it, aritz; but it is just too alien a concept to fit into construct.