Why doesn't the deluxe soundtrack have all of the songs?

[Crickett]

So, I came around a song on youtube from the Avatar soundtrack in my recommendations. "Mated for life". Now, I own the soundtrack, but I never bought the deluxe version so having listened to that song I decided I would buy the deluxe version to get it. But it isn't on the deluxe version.

The original soundtrack includes
You Don't Dream in Cryo
Jake Enters His Avatar World
Pure Spirits of the Forest
The Bioluminescence of the Night
Becoming one of The People Becoming one with Neytiri
Climbing Up "Iknimaya" - The Path of Heaven
Jake's First Flight
Scorched Earth
Quaritch
The Destruction of Hometree
Shutting Down Grace's Lab
Gathering All the Na'vi Clans for Battle
War
I See You (Theme from Avatar)

The deluxe version adds
Pandora
Viperwolves Attack
Great Leonoptryx
Escape from Hellgate
Healing Ceremony
The Death of Quaritch


What I was wondering is why

Into the Avatar World
Thanator Chase
Mated for Life
Fight to the Death
Don't Want to be Late

were all left off?