You're missing some stuff in the list.
There's two rips of Soviet March from Command & Conquer: Red Alert 3, both using "In Our Town"
No rips from MLP games are included
There's other rips referencing the show that aren't listed here
No rips referencing the MLP fandom appear here, such as "THE WORLD REVOLVING (Delta Mix) - Deltarune" or "Circus (Demixilized) - Five Nights at Freddy's", or rips from fan games like Friendship with Benefits
Two sources in particular seem to be used a bit:
Trixie's "FUCK!" outtake from the show
The video "pinkie just had sex!!!!!!!!!!" by theburninice1
I agree that MLP currently doesn't have any major ties with the channel and isn't part of the lore, but I still think MLP should get a page. If you count all the rips from 2020 and 2021 together, there's more rips referencing it than rips referencing FUNNY BUDOTS, Eyewitness, or Laughing Baby Bubbling Remix.
Edit: There's 56 rips in total according to a playlist by Hyloaf2, uploaded throughout 2020 and 2021, not counting medley rips.
