All of those were slow burning, though. It took awhile for it to transpire and those front offices needed to do their part.
This trade is different. There's nothing slow burning about it. They traded a primetime superstar who just took his team to a Finals months before, also with a pretty subpar supporting cast. It was Luka, Kyrie and a bunch of meh. Similar to 2006 when it was Dirk, Terry and a bunch of meh. But Luka and Dirk were so good that they elevated those supporting players and they looked better than they were. That Mavs team outside of Luka/Kyrie was not even in the same realm as the Celtics roster.
The player they traded for was an aging, broken down player with a long injury history. Nothing about it was hindsight. It was said the second it happened, this was going to be terrible for the Mavs and would ruin any championship window they had with Luka. AD is not that guy, you can't build around him. Yes, Luka was injured as well but he's younger and injuries affect big men more.
And now? The Mavs are looking to trade AD. That makes this trade infinitely worse. You essentially traded Luka for whatever they can scrounge up for AD in the end. Those trades listed above is even not close to how bad this was. This trade immediately tanked the Mavs into 90s level of sucking. Lakers now have a much longer future. And got rid of the baggage that is AD.