I mean i’m glad the Old EU Aka Legends has been left alone they haven’t gone back and given darth names to all the non Darth Sith Lords, or retroactively gave them all red lightsabers. And they didn’t edit the timeline or backstory Zahn had in his trilogy about the old Empire, the Clone Wars, they didn’t correct the ideas of the Jedi pre prequel to homogenize them with Lucas.
I mean, I don’t think they had any intention to do so, regardless. When they started writing the New Jedi Orders series, Lucas himself approved the idea of the Jedi being married, so they never felt the need to correct this. At best, they tried to insert Prequel references in the later novels, like the Legacy of the Force series and the Dark Nest Trilogy, but nothing more. And even when it comes to the Sith, I don’t think they had any intention of giving every Sith a Darth title and a red lightsaber. If I remember correctly, it was explained that these things were introduced by Darth Revan, so there was no need to retroactively modify the Sith from the Tales of the Jedi comics. And Lucas himself never wanted all Dark Side users to be Sith. He was the one who introduced Ventress in both TCW and the og Clone Wars, and she is not a Sith. As for the inaccuracies about the Clone Wars and the rise of the Empire in the Thrawn Trilogy, they tried to explain them in later novels, and used the Clone Wars Multimedia Project to portray events described in the Thrawn Trilogy, like the devastation of Honoghr during the Clone Wars.