The issue is either make our pathing buggy and bad. Or make it so minions get out of our way which will make it possible to manipulate minion pathing which riot never wanted. People used to do that in the classic dota and that is one of the things riot never wanted. Cause you can keep moving in order to make the minions slow down thus forcing the wave back.
It sucks but too many people would exploit any changes riot makes to pathing, really there isn't anything the balancing team could do outside of give EVERYONE the ability to phase through minions like Fizz's passive which would be... actually not that bad of an idea imo lol.
Either way its just too much of a nightmare for riot to deal with so they will probably leave it how it is not for a very long time lol.