First of all im an expert earth spirit player and i only play him mainly so im the best to hear from. It's all about his ultimate (magnetize) in your 6.85 map. It just gets removed/deleted by every hero spell and item in the map whether the players notice or not and this is just a horrible treatment for Kaolin because he relays completely on his ultimate and it already has weak damage per second and becomes unnoticeable with pipe on enemy. You magnetize someone with eul or whatever crap and he just deletes magnetize with eul... now my 80 seconds cd ultimate is useless and dealt 0 damage and this happens with way tooo many items and hero spells (i can give the full list). I have 2 suggestions to not make this too long

1- Restore the old 6.83s magnetize on 6.85 map that can't be deleted like venomancer

2- if you won't fix magnetize, at least reduce it's cd to 40-50 seconds in addition to boulder smash, geomagnetic grip and stone remnants cd (20 secs per stone) I hope you really do this modification in the future

any dispel should remove the magnetize, that's how it works and for you to know if you ulti in more than one hero or hero+creeps you can resume the magnetize because the creeps are infected with your ulti and so will the hero near them. Nothing more to do with that