Originally Posted by Bribe
Anitarf's SpellEvent could run off of this,
Yes, but why should it? Once you have a system like it in your map, its spell event trigger is the only one you'll need. In that case, using this library makes literally no difference. Same goes for orders, if you are using order triggers a lot, this would help a bit, but having a dedicated order event library that allows you to filter responses based on the issued order id would help a whole lot more and once you had such a library implemented, this one would again be useless.
As far as other unit events go, they are not used often. "A few dozen handles" is by no means an underestimation. There is no utility in saving a few dozen handles' worth of RAM.