Why can't the community share replays directly through league?

Replays... What is the real point in saving a replay? Other than for coaching purposes it all feels a bit pointless. Why can't there be a replay sharing system similar to what call of duty and many other games have been doing for what feels like centuries? Surely it can't be that hard. Personally I'd love to be able to say " hey bro hop on my profile and check out my sick plays last game" ... Instead I would have to save the replay and send it through some external service. Is there a chance this could be different in the future Rito?