so without a spec monks gain stats from all main stats, mainly intellect and agility. see another popular post about unspeced characters.
so they are able to completely and effectively heal a dungeon at lvl 30. why? you can queue as healer and spec out into spec'less (duel spec)
with the following talents and glyphs
Warlords of Draenor Talent Calculator - World of Warcraft
using surging mist on the tank, with chi wave on cooldown and expel harm as well on the tank
also use intellect gear.