Orb of slow questionable

Any chance the orb of slow proc sound will be changed to something more pleasant to listen to? Or let it have same sound as orb of fire or just mute it. If there are a bunch of heroes and all use orb of slow they make awful noise which isn’t pleasant to listen to when playing long. It’s also the same sound as slow even though the debuff is different for instance cannot be dispelled.
Orb of slow is good in 1vs1 melee games etc. but as soon as you play a survival maps with hundereds of enemies attacking the orb rarely procs on weaker units making it useless compared to orb of corruption or orb of venom. The orb of fire is better than orb of slow for longer battles since it is cheaper, always procs and allows your melee hero to target air units for less gold.
Edit: For my coop missions I have now reverted back so arcane vault has orb of fire instead of orb of slow. Orb of frost exists as reward for killing certain units and it procs 100% while orb of slow does not. Orb of slow should not have been added to melee games, it was intended for specific campaign maps such as rexxar and blood elf, but campaign maps dont use latest patch due to lack of resources to update them :confused: