>>126933896 (OP)Both Lars and Het felt guilty and angry about Cliff's death.
They took it out on the new guy. It doesn't matter who it was, they would have done it to any other new band member.
I think the dynamic in the band was kind of similar to Nirvana's. There was this foundational duo that created the initial band and they were friends, so the other knew he couldn't get kicked out.
But anyone else who joined later had to earn his respect and always feel like he has to tread carefully to not get fired.
Tldr, it was inevitable. And they couldn't find someone as unique as Cliff to replace him. Anyone joining in would have to live under the pressure of trying to fill in Cliff's big shadow.