Quincy Promes was the criminal I was referring to. He committed the crime in July 2020 and Ajax kept him at the club for another year (whilst he was obviously still a prime suspect) until he was convinced and like you say ran to Russia.
Hag’s comments on Overmars at the time were hardly scathing, in fact he even suggested a “romantic thought” of them both managing at Ajax again at some point and dedicated their league title to Overmars after he had been dismissed.
I think it’s relatively fair to assume he is one of these “keep it about football” kind of guys.
Fair enough, I presumed you used the word 'another' to refer to someone else than Promes.
Ten Hag had a friendship with Overmars for over 10 years, working together at two different clubs. He owes most of his succes directly to Overmars. Still the first thing he did when his behaviour became public, was express sympathy to the female victims of the behaviour of Overmars. Then months later came the comments about the 'romantic thought'. Which in my opinion aren't unreasonable. It's easy to see things black and white, and following that logic of course what Overmars did was wrong, so he's now a bad person forever.
Realistically, or more grey and less black and white, it's a situation where a person, Overmars, objectively has been exceptionally good at his job at Ajax. He also behaved like a bit of a pervert, though not to a point where there was a good chance of any serious legal reprocussions. So what do you do with such a situation, where someone did a lot of good things and also some bad things? Do you ban him forever? Does he never deserve a second chance? That was what Ten Hag was referring to. And that's also why he gave him credit for the success on the footballing side at Ajax.