They did a spellbook UI rework but Wizards still learn other classes spells?
They even demonstrate their new "Learn spells" UI for Wizards by showing two Cleric spells, Revivify and Silence, in it.
It seems like a trivial fix to tag spells by classes that have them on their spell list. But now it's really starting to look like Larian dont want to do this and want Wizards to learn everything. Why would you want to let players do this now for so long only to be disappointed later?