The story group releases less books comics and video games because it is trying to keep a straightfoward canonity
And to say the least it's a big failure. Nothing changed with the "new" Story Group. Also I was not talking about quantity but about quality something the new EU is lacking. Here's the list of EU content besides the first movie of a trilogy :
Legends - TMP (19 May 1999) :Novels :
The Mandalorian Armor
Galaxy of Fear: Clones
X-Wing: Iron Fist
Young Jedi Knights: Trouble on Cloud City
Vision of the Future
Galaxy of Fear: The Hunger
Dark Forces: Jedi Knight
Slave Ship
Young Jedi Knights: Crisis at Crystal Reef
X-Wing: Solo Command
X-Wing: Isard's Revenge
Novelizations
Jedi Apprentice: The Rising Force
Jedi Apprentice: The Dark Rival
Hard Merchandise
Jedi Apprentice: The Hidden Past
X-Wing: Starfighters of Adumar
Jedi Apprentice: The Mark of the Crown
The New Jedi Order: Vector Prime
Jedi Apprentice: The Defenders of the Dead
Tales from the New Republic
Jedi Apprentice: The Uncertain Path
The New Jedi Order: Dark Tide I: Onslaught
Jedi Apprentice: The Captive Temple
Rogue Planet
Comics (one-shot/mini series) :
Dark Forces: Rebel Agent
Dark Forces: Jedi Knight
The Jabba Tape
Jedi Academy: Leviathan
Mara Jade: By the Emperor's Hand
Crimson Empire II: Council of Blood
Vader's Quest
The Bounty Hunters
Novelizations
Union
Chewbacca
Comics (ongoing) :
Republic
Tales
X-wing: Rogue Squadron
Videogames :
Star Wars: Rogue Squadron
Star Wars: X-Wing Alliance
Star Wars: Episode I: The Phantom Menace
Star Wars: Episode I Racer
Star Wars Episode I: The Gungan Frontier
Star Wars: Yoda's Challenge Activity Center
Star Wars: Pit Droids
Star Wars: Anakin's Speedway
Star Wars: Episode I Jedi Power Battles
Star Wars: Force Commander
Story Group Canon - TFA (19 December 2015) :Novels :
Heir to the Jedi
Servants of the Empire: Rebel in the Ranks
Lords of the Sith
Dark Disciple
Servants of the Empire: Imperial Justice
Aftermath
Lost Stars
The Weapon of a Jedi: A Luke Skywalker Adventure
Smuggler's Run: A Han Solo & Chewbacca Adventure
Moving Target: A Princess Leia Adventure
A New Hope: The Princess, The Scoundrel, and the Farm Boy
The Empire Strikes Back: So You Want to be a Jedi?
Return of the Jedi: Beware the Power of the Dark Side!
Servants of the Empire: The Secret Academy
Battlefront: Twilight Company
Novelizations
Adventures in Wild Space: The Escape
Adventures in Wild Space: The Snare
Adventures in Wild Space: The Nest
Bloodline
Adventures in Wild Space: The Steal
Adventures in Wild Space: The Dark
Aftermath: Life Debt
Ahsoka
Catalyst
Comics (one-shot/mini series) :
Princess Leia
Lando
Shattered Empire
Chewbacca
Obi-Wan & Anakin
Novelizations
Han Solo
Comics (ongoing) :
Star Wars
Kanan
Darth Vader
Poe Dameron
Videogames :
Star Wars Journeys: Beginnings
Club Penguin Star Wars Rebels Takeover
Star Wars Rebels: Recon Missions
Star Wars: Uprising
Star Wars: Galaxy of Heroes
Star Wars Battlefront
Star Wars: Yoda's Jedi Training
LEGO Star Wars: The Force Awakens
Star Wars: Trials on Tatooine
TV :
Rebels Season 2
Rebels Season 3