I think it would have been better if it wasn’t jumping around so much. Maybe not cutting out Eve, Debbie, and Donald’s stuff, but rather bringing them more together? Let the first half of the episode be dedicated to them and the second half focus on Mark and Nolan on Thraxa. They had the set up for it, Eve shows up and asks where Mark is, Amber says hes in space, they have their whole conversation and then we follow Eve for a bit before swapping to Donald or Debbie. Get their things out of the way, end it on Debbie this time finally saying “goodbye” to Nolan, and then cut from there to Mark reuniting with Nolan. Dedicate the whole remaining 30 odd minutes to Thraxa specifically. The fight scene itself doesn’t need to be crazy long, and it felt fine in the episode, but keeping it all contained would make Thraxa in general flow better and be better build up to the Viltrumites arriving and the fight. Plus, it would flow better into the mid-season cliffhanger of Mark being tasked with conquering earth. The Mauler Twins whole thing could’ve just as easily been a single end credit, or maybe a split end credit. The only thing I’d keep in order is the top of the episode where Nolan and Debby are dealing with their grief.