Certainly. Why should some state be teleported in magically while other state (the argument 'e' in the above example) has to ride the bus? Does it belong to a different class of Being? I don't think so. This forces me to spend precious brain cells remembering which things go in which buckets and what the rules are for accessing the buckets - i.e. busywork - rather than the problem at hand.
The easiest thing is to explicitly bind to just that state you need and ignore everything else. That's more or less what the argument "e" offers: it's a bag of all the goodies you might need while handling your event. Clearly, therefore, the DOM element emitting the event should be available through that same mechanism – and as you generally can get everything you need in that department through things like e.target, I find it simplest to remain blissfully ignorant of 'this'.
