I think he might have survived if it was just that first incident - one ex-Chief Whip arguing with the current Chief Whip and using some not very professional language.
But the stories of bullying junior civil servants whilst at the MoD - telling someone to slit their throat, jump out of a window - are harder to get around. And a report I saw on twitter last night from I think it was a C4 news item about when he had given someone a cheque to help them with a financial issue, and relaying the message 'remember, I own you now', all point to a despicable person, a true bully, getting their come uppence (temporarily of course, he seems to have as many lives as a cat).
He might have been the keeper of that spreadsheet, but people have long memories. Good riddance, until he resurfaces