You have no perspective on that 80%. Yes, only 20% have completed a raid. 30% have equipped an exotic. So somewhere in the middle is the line between beating-the-game type players and endgame players. Let's use the middle and say 25% are endgame. Looking at other games trophy data u can clearly see a dropoff as the games progress, even in AAA titles (Assassins Creed and CoD usually are on the lower end). Heck, on average only 95% complete the first board in any game! By the time u get to the final board and completion (on any level), you are left with 30-40%. Yes, Destiny lags behind a bit, but nowhere near as much as click bait articles will have u believe. In summation, only about 15%-20% of ENDGAME players have not completed a raid. Not unreasonable at all. Edit: I used PS3 trophy data. While their is a margin of error across other platforms, one could expect similar numbers. Also, given the age of many of the titles I sampled (I sampled way more than I listed, of course), older games will yield a much higher player pool.