After enjoying Crash Twinsanity, learning about how much was cut made me sad

.
-Hoverboard level that was far enough in development that its core mechanics are still in coding but left incomplete
-Two levels playing with the idea of going inside peoples mind; one level with Cortex going in Coco's mind (with it having you fight all kinds of stuffed animals and cutesy things; the theme still is in the final game) and another where you play as Crash and are inside Cortex's mind, with his him singing while you are playing a traditional Crash level
-Underwater levels that would have been a mixture of a lot of elements; standard Crash gameplay, one where Coco plots a sub and more
-Levels expanding upon the rollerbrawl portions of the game, using Mecabandicoot's mechanics for a full level, and two more portions where you play as Nina and Dr. Cortex
-Flashback level(s) of Crash fighting trademark villains and exploring N. Santy Islands caves, temples and jungles
-At least two more levels for the Ice Fortress world where Crash and Cortex would go on N. Gin's ship and travel to Cortex's Ice Lair. Looked to mix platforming across garters, a Coco portion with her riding an Ostrich and platforming on a moving ship.
So much was cut from Twinsanity, its criminal :'(. Thankful that the final game is still a fun time but it bites that the game could of been so much more if funding wasn't gutted last minute and it got another year of development time.
Here are Links to other stuff that was cut for the game or explains my points a bit better:
-Story Boards of Scenes not in the Final Game:
https://www.youtube.com/watch?v=2xU77EkrOIE&list=PL9D33F6B9DDDBF83C
-Cutting Room Floor's Study of Content Lost from the Final Game:
https://tcrf.net/Crash_Twinsanity_(PlayStation_2,_Xbox)
-Cut Levels:
https://www.youtube.com/watch?v=HFa1-y5ZulM
-Cut Levels 2:
https://www.youtube.com/watch?v=BB4vfcdORPI
-Fan Recreations of the Cut Story Boards:
https://www.youtube.com/watch?v=fcfyX9WC3-U&index=1&list=PLfSSR7f6doDfYvV7L_LQDA1IxVSrQZvF1