If you had read my comment, you'd see that I explained why it has no relevancy. Not only it has nothing to do with Mortis but it's an opinion based on a premise that Lucas never supported or corroborated.
I did. And I disagreed with it. But I agree it’s a tangential argument not directly relevant to Mortis. But I think both it and Mortis are emblematic of an issue I have with Star Wars in that it seems to present the Jedi and the Force as some profound morally rooted ideology that has something to say to its audience when it often comes across as muddled and confused. Like what message are you trying to say when you have Mortis go into chaos when good and evil are not balanced against each other with a central figure. If the Daughter is good, why would the Father or Anakin need to be there to hold her in check?
Frankly, I've never had a problem with the Mortis arc. There are many ways to view the Force, and the Father, the Son, and the Daughter were intriguing characters. Plus, I like how Luke and Darth Krayt eventually confront Abeloth, and so the Mortis arc is a good set-up for that.
The Mortis arc along with Yoda's force journey arc is probably the most important ones of the clone Wars. One explains how one can become a force ghost. The other gives us soo mutch more insight into the force lore and all. Mortis arc got only more better after Rebels re-introduced them as force gods and they build gateways into a force realm. I think we might see some Mortis related in the Ahsoka show.
I agree with what Frederik said. I'm glad that people do like this arc 'cause I mainly heard it criticized on Youtube and elsewhere on the internet when it came out back in the day. I think the portrayals of the Father, Daughter, and Son were good ways to analyze the Force. Plus, I liked how Rebels and Fate of the Jedi both drew upon this arc. Of course, I like FOTJ better than some, but that's another kettle of fish. My significant other and my sister-figures were really intrigued when they watched the Mortis arc. However, some years ago, I watched it with my former college roommate, and he didn't like the third episode, particularly when Father mind-wipes Anakin. However, I never really had a problem with it. It was necessary for him to do so, and it was interesting to see Anakin temporarily turn to the dark side for less selfish reasons. Son was messing things up, and he could have been a terrible threat to the galaxy had he escaped with Anakin. Also, I like the idea that the galaxy's conflicts just multiply after the deaths of Father, Son, and Daughter. It does a lot to explain why the post-ROTJ EU was so conflict-ridden. Lastly, while Abeloth is an insanely OP character, I like that her re-emergence is a consequence of the loss of the original Ones, and the notion of both Jedi and Sith needing to replace the Ones is a fascinating concept.