I considered it. But since it’s a four episode arc I felt it wasn’t going to work. And even though it is one of the best arcs in the series, it doesn’t really connect to the films in any real way, other than Anakin’s distrust & the kidnapping plot.
The slaver arc shows Anakin’s concern for Obi-wan just as clearly while also directly connecting to events & themes in the PT. And his distrust of the council is also effectively communicated via the final Ahsoka arc.
EDIT: I’m looking at restructuring my current third act to A) have Ventress somehow be present for or involved with in some way the 2nd battle of Geonosis, and B) have the bit where Anakin & Luminara rescue Ahsoka & Barriss happen after the capture of Poggle. That way the emotional climax is also the main climax and the film doesn’t carry on needlessly after that. I’m also hoping that maybe I can use the bit from Brain Invaders where the two padawans wake up in the med chamber and have that happen after the cave-in instead.
We’ll see.