Nerf the health. Make them soloable-scaled to how many players engage. Thats what we’ve been asking for from the very start.
This wouldn’t need to be a thing if the above suggestion was what you did.
While I appreciate you’re giving us a reason, murder balls are not always what people want. Some people on dead realms stay on dead realms for the specific purpose to not be bothered by having to join a group to do things, they are content going at it alone.
This also does not address content specific to the Caverns such a particular achievement requiring the killing of these rares while in a crab form for a toy as seen as a concern in this wowhead comment on the article that highlighted the change:
https://media.discordapp.net/attachments/1174048507112468481/1177016318856286258/oops.png?ex=6570f8de&is=655e83de&hm=d89179fe6546080c801c2947ac528c9a2648756776cade1066333063f2e637ad&=&format=webp