I like reading texts in videogames that expand on ideas you've seen and offer background to help build out the worlds in your head. I understand most people don't have the patience to do so, but I think it's perfectly acceptable to have backstory present in text form, especially if it's about events that took place well prior to the start of the game. Also, where in the game is there room for cutscenes that show things like the expeditions of guardians before you, the origins of weapons like thorn and TLW, and the events that happened with the birth of the vex thousands of years ago? Where would [i]you[/i] put them?