Also, out of nowhere "backstory" for 90s Kid (the shitty comic relief who is always houting how extreme he is), which would have been okay in one of his stupid show sketches, but in this movie is just pointless.
From a storytelling standpoint the problem goes much deeper, it is a mismatch between the atmosphere/tone the movie wants to have and the plot and backstory it has.
Stupid fun
You have a person here, that puts silly comicbook storylines into his reviews to entertain his audience. This isn't a bad thing. Yeah it silly, but a good part of his audience liked it and it fits his show. If you dig it, it is stupid fun and does not need to be anything more than that. He then asked, if people would watch a Linkara movie and, sure enough, people gave him money for that. So it is a film some people wanted to see and these people also wanted to see 90s-Kid, Lounge-Singer-Guy and whatnot, because they spend their money on a freaking Linkara-movie.
Absurdity
But the problem is, that this story takes itself way too serious. It has nothing 'absurd enough' to be a basis for one-note characters. In the show we see a man, who screams at comics for a living while saving the world from Lord Butthurt. This is absurd enough for the audience to accept the fact, that there are pun-characters who solely exist for pointing out flaws in comics. Nobody thinks about the fact, that they also appear when Linkara saves the world again. No explanation needed, because the suspension of disbelief is already at 400%.
This movie however has nothing like this, there is no reason for 90s-kid to be there. He should have left those characters out completely, but he kept them in and therefore had to give them some depth.... And since
Linkara is only able to convey backstory and character development and motivation in fucking 'in your face long emotional monologues set to sad music', this comes over as clunky (as fuck).
This also reminds the viewer of the absurdity of the situation. When I character asks himself, "Why the heck am I here?", the viewer does the same and quickly realized how stupid the entire thing is. Another sad point is, that during the monologues the other reviewers are only there, because Linkaras characters need someone to talk to, in order to explain themselves.
It seems like everything in this movie is pointing out the mismatch between the atmosphere it wants to have and the actual story it has to work with. For instance, he's not just acknowledging the silly Channel Awesome Movies, he actually makes absurd things like "The Plot Hole" important plot points.
In the corner
In some sense Linkara was already written into a corner, before he even wrote the first line of his script. Because the movie takes itself that serious, instead of having the 'It's silly and we know it'-approach, you easily notice all it's other failures. This is pretty much as if you would drop Scooby Doo and the Gang into a story-line from True Detective or Sherlock.
Of course, it doesn't help that Linkaras writing is, well 'sub-par' at best:
If the 'sensor sweep' only takes 5 seconds, why isn't it part of the 'normal scan'? The amount of power and abilities his ship has fluctuates, as the plot demands it. The dialogue between him and his robot-twin is corny as hell. A robot gets driven off by bees etc.