Is it necessary for event.handle to removes namespaces ( liveHandler )

Is it necessary for event.handle to removes namespaces ( liveHandler )

By removing the namespace in handler, it makes it impossible for liveHandler to figure out which events to call back.

I know this is to normalize "click.foo" into "click", but is this necessary?

I'm not sure how to get live to work with namespaces if handle does this.