If you watch the deeper conversation, they say they'll be trying to bring the actives from Frost Queen's and Talisman back.
Besides that, getting to rush another item is pretty good on supports; we may be losing actives in the pool of items, but you only have six slots anyway. I would argue that for tank supports (who won't be getting FotM active back ever, most likely), they can rush locket for about the same effect at roughly the same point in the game.
Yeah, now they only have 1 shield instead of two, but they can continue to rush other, more interesting items. The same thing is true of non-tank supports, too, but I do admit it will feel worse if you loved those items.
My biggest problem with them is that they were in nearly every game, so they don't feel fresh and fun to me. I actually rather like the idea of having sightstone on the gold item; that way, supports will (in an ideal world) have more options so they can further differentiate themselves from other supports.