He's not seeking revenge. He's simply continuing what he started in AvA5 (well, is that still, like, sowing chaos wherever possible??)
And it's not bad that he's continuing his old goal, no questions asked, I'm all for it, it's logical and fair. BUT
WHY DOES LORD NOT CARE SO MUCH ABOUT WHAT HAPPENED IN AvA5????
He has practically ZERO reaction to Chosen, who was actually his only friend for seven years and who, for no reason (from Lord's perspective), betrayed him, after which they haven't seen each other for five years!
Why does Lord have zero reaction to Second, who was the one who ruined his plan last time??? Lord is simply using him as a tool, but doesn't even gloat, doesn't enjoy the moment of power and retribution against him.
How did you manage to make him so emotionless???? Why does he care so much about HIS past???
Why the fuck are all the good villains allowed to freak out, cry, and get angry, but Lord isn't allowed, aaaarrggghhh.
Do you even realize that Alan kind of fed us villains with revenge motivations twice, even though he could have come up with absolutely any other motivation for their evil deeds, and Alan didn't give a damn about a character whose existing background really begs to develop into a revenge arc against his abusers.
The complete lack of emotional reaction to what happened in the past makes Lord so flat in Ava6; his goals simply lose weight and meaning.
In Ava5, it was perfectly logical to conclude that Lord was simply raising the stakes for their merry pogroms with Chosen. He had an emotional connection to his goal. It was evil for the sake of evil, but it was aimed at gaining emotion and spending time with a friend! Now, of course, you can say that Lord is moving toward completion and all that, but such an important and piquant part is simply ignored by Alan and not revealed, which has a very sad and unpleasant impact on Lord's personality. He simply has no emotions anymore. He's cardboard and empty.
I'd like to believe that the next episode will be better in this regard, but it's highly unlikely.