Board Thread:Ben 10 Discussion/@comment-4969948-20160930222056/@comment-24922135-20161021222513

two things:
 * Humungousaur drowning (and general bad writing that led to Ben choosing that alien) is not what grinds my gears most about Deep. It was the botched Universe building. The problems with Piscciss both as a planet alone and as the home planet of both Piscciss Volann and Piscciss Premann are what get to me. In one part because I'm a science nerd, and one part cos I'm a Sci-fi lore nerd.
 * Unfortunately, whichever villain is the main focus of a shows final arc tends to be the main villain. They are usually the biggest bad (which has been true for all series, albeit there were no discernible arcs in OS) and unfortunately 3/4 times that was Vilgax. He was technically the biggest threat in UA, and the villain they decided to end the series on. Maltruant as a final villain at least made some sense while also providing a cool new villain with huge stakes on the line.