Old PvE events in Legacy: Change them up a bit, or don't bother.
For experienced players of the game, it makes the events that we've solved long ago even less of a challenge. You can have some sandboxy type fun with them, of course, sailing through them with broken Legacy combo decks, but is a sandbox like that enough content for one of only two main weekly events? Isn't TG exactly that sandbox?
For new players.. how does the change affect them at all? They don't own Legacy cards. If this is an attempt to make them buy Legacy cards, I think it's a misguided one, because they're always better off buying Standard cards that can be played in both Standard and Legacy events than they are buying Legacy cards which they can only run in events with poor prizes.