IMO, that entire saga boiled down to Levy being a regular, law-abiding bloke (as much as one can be a 'regular' bloke while being a multi-millionaire), going up against a gangster who has previous for shipping heroin into Europe and almost certainly has had a hand in multiple murders. It came down to ego, intimidation, and a couple of professionals (Levy on our side, Gibbs-White on theirs) deciding it wasn't worth it to try and get one over an enraged, probable criminal. No blame for anyone involved.
If anything, the only lesson to take from that saga is that the Premier League's fit and proper persons test clearing people like Marinakis is just one more example of why strict external regulation was needed decades ago - whatever the league's coterie of owners think.
Palace's owners strike me as straightforward, and at least lawful - unlike Marinakis. Doubt they'd do to Eze what Forest forced upon Gibbs-White.