This and Sacrifice/Infinite Crisis pretty much derailing Wonder Woman's book for years along with it being used by certain knuckle-draggers to go "Diana is such a violent killer" is why Lord has no business in anything WW-related.
I also never read JLI, or any of prior appearances, so him being a good guy turned bad means nothing to me.
Saying he should stick around because that book/moment was "important" is like saying every Cassandra Cain story should be about dealing with her poorly-received heel turn, Stephanie Brown's stories should be entirely about War Games, or Hal Jordan should be turned to Parallax in his next movie appearance.
I'm not sure how much he actually ships it beyond he just likes the basic setup of "superpowered woman/non-powered male", which was pretty much what he did with Steve in his Rebirth run (who was off the table in Rucka's first run).
There's also a panel in that run where Diana explicitly says she's not looking for a boyfriend/girlfriend, so I don't think Rucka was wholly interested in romance in his first run.