I'm not at all surprised about this, Seen many a 'near miss' over the years.
MAN getting too saturated now, ATC trying to squeeze too many slots in.
And that's when mistakes/accidents happen, And combined with some flights in a rush to get away.
Not implying that these 2 aircraft were in a rush, But when the heat is on there are greater chances of accidents.
Could do with a 'bridge taxiway' over 23R for 23L departures.