Let me get one thing straight with you. When Condor and an official ruling disagree, 50% of the time the official ruling gets reversed later. The other 50% of the time, the rules get clarified/changed to make the ruling right when it really wasn't before.
Spirit Link does not have, and never has had, Lifelink - in any form. It works the way it has done since April 1999. The Spirit Link triggers when the enchanted creature deals damage, then SBAs are checked, and you lose the game.
Lifelink is an ability of a creature, and gives the controller of the creature life. So even if the creature was enchanted by your Lifelink, you would still lose. Your opponent would gain life though. If you want to gain life from a creature with Lifelink, you have to control that creature.