Awwwwww
PLEASE DEVS PLEASE!
In theory, it's possible.
But, there are some serious hangups. The plugin actually cancels most events and calls fake ones. Why? Who knows. This causes problems for most plugins, which depend on events behaving properly. The plugin would need to be modified to actually play well with other plugins (recognize the existence of worldguard, vault, worldedit, etc). This would require creating an abstraction layer on top of McMMO, tracking the events it throws, modifying the code to not cancel events anymore (assuming their methods aren't declared final) .. I mean .. there's so much work that would have to be done, it's on the end of my priorities list.
So .. tl;dr .. it's not going to happen, unless we somehow start seeing 300 players at a time and can attract some halfway decent java devs to share the workload.