Anyway, I can understand where the comment comes from. MoP had very little 5-man dungeons since they were mostly replaced with scenarios. But scenarios aren't a challenge and hardly reward any loot. Scenarios should've replaced group quests instead of dungeons, the way they were originally intended.
In that sense, yes people have a valid reason to complain that there aren't enough 5-man dungeons. And not everyone likes to raid. Personally I like LFR since I do like seeing the lore progression and all that, but I don't feel like scenarios and LFR combined fill up the spot that 5-man dungeons/heroics held. We're missing something in-between.