So does boosting work with a LINKED 70?

I'm leveling 5 shamans right now, but my primary account where my first shaman is also has a 70 druid, and 70 warlock, so I was thinking about boosting the 4 locks using the 70 warlock, but all the level 1 warlocks would be "linked" to the 70 - will that still work? (for now)