'Dragon Age: Inquisition' lacks the influence system, romance system, origin stories, and new species. Outside of moving along the Templar and Mage storyline, the players are not presented with anything new. 'Dragon Age: Origins' was all about exploring new species, cultures, social cast systems, etc... Unlike the side quests in 'Dragon Age: Origins', where you learn about a new species, the side quests in 'Inquisition' are hollow.
While comparing the different sizes of strategy guides, between 'Dragon Age: Inquisition', 'Skyrim', and 'Oblivion', the smallest game of them all was 'Inquisition'. When it comes to side quests, content, and world sizes, 'Oblivion' is still the king of all rpgs.
'Dragon Age: Inquisition' feels long, for it's use of busy work makes everything slow and boring.