That’s why a lot of people didn’t engage with the lore of Destiny - you had to go to a website totally separate from the game, link your account old-school Bungie style, and could only access the grimoire cards from said site after you went through the hoops. There was nothing in the game giving you more aside from the NPCs and the few cutscenes themselves. Not even a link to take you to the site from the game itself.

Almost every other game has an in-game lore/info screen talking about the world and characters of the game.