Super lame by Bungie. Blizzard did it right with Raid Finder on WoW. Option to do a raid with randoms on a less difficulty settings with rewards lower than a normal raid. In fact WoW has tons of options to experience raiding and scaling rewards.
1) Raid Finder (25 with randoms)
2) Scaleable (10-25) premade
3) Normal 25 man premade
4) Heroic 25 man premade
Some would say Blizzard did it wrong. By doing these things and making the game more accessible, it also stripped the server community and made the game feel less like an MMO community. Yes, more people got to experience raiding, but ultimately it damaged the player community. Some would say.
Doesn't really apply to Destiny though since it's not an MMO and you can only see 16 or less players in your world instance at a time.