A Possible different buff to Ornn's Ult

Just had a good thought On how to better buff Ornn's ult. Instead of making it move any faster (it's at a good clip now) I think it would be more helpful if the elemental tracked to Ornn's position over the duration of the ult. it's just oh so easy to side step now and Ornn's generally much less mobile than other champs already. shouldn't be too op but less clunky. Also - just like what is up with his ability scaling? can anyone explain the logic behind every ability scaling off a different stat? thanks,

KingKazoo