About the episode, Albedo like a kid had became something strange, until the end of 4 Arc, Omniverse create and development a never seen before Albedo.
Omniverse take the in some way stupid and basic AF Albedo, into this new character that even dont care Ben he only wants to kill Azmuth, take all the power of his brain or at less take the "bussines" like first thinker and if in the way he finds Ben he will kill him too.
So in this episode the writer follow that line, but like some one say this last Arc, feels incomplete, really quick and trying to follow what they do before. In Omniverse we always deal with something new, is one series that have a lot aliens, villains and worlds to use.
So when we have that in this last 10 episodes, every one try to finish and end really quick the storys alredy create and development in a beautiful way, because Omniverse take his time, to show Chamcaster story, Khyber story, Albedo story, Vilgax story, Rook story, Kai story and even Zs'Skayr story.
And now in this last Arc they close Chamcaster story in a bad way, they even dont follow the past events, try to be so good liek before but even the good development of Bezel, how the writers try to follow past events and ending the "arc" this way kill every the cool ambient create.
In "From Hedorium to Eternity", it is the same thing, they try to explain something or close something? I don't know, but Zs'Skayr is there and even that doesn't help this terrible episode, that could be better if Cooper was the center. On the other side, Khyber story is really push in.
It's like "From Hedorium To Eternity", "Stuck on You", "Third Time is a Charm", "Malgax Attacks" and even "Most Dangerous Game Show" are episode made because they had to, the team behind Omniverse create a lot of cliff-hangers and now in only 20 episode they have to ended it all, so we can say all this season and part of the 7 Arc one is to catch up and finish to explain how and where are these characters.
So yes, for me is sad that Omniverse ends in this way and even that this is one of the best show of Ben 10 (in terms of design, music, main story, characters, aliens and even so many filler episodes) and they killing here making the crew finish everything in 20 episodes and not in another spin off.