Don't forget, my post related to the totality of CCFC's interaction with ACL; and therefore a time when 'disgusting' behaviour from one party to the other would prevail irrespective of owners at the time.
As for SISU, due diligence gave them the chance to step away from much of the club's poor history. I would agree with you more if they'd have purchased the club out of administration, renegotiated significant contracts; and started again on a sound financial footing, with a sustainable business plan for the long term. But they didn't.
So, what ACL have seen, in their time, is two failed owners of CCFC; and a lease seemingly forfeited less than one tenth into its term. Yet they're 'disgusting'?!?