I don't think I'm convinced. That link just mentions Timmorn- and he was an anomaly. The others are also odd cases. Two Spear's lifemate, Willowgreen, was a healer. And healers have control over that (Rain and leetah). Kahvi... a goback. Somehow they turned recognition off.
I think it's possible for elves to breed without it- the GoBacks do it. But something changed about them to allow it. Maybe the fact that their lifespans were so short- and they evolved to cope. But most elves really do seem to need
recognition for females to be fertile. it must, in some way, trigger fertility. It may not be the only way to trigger it, but that does seem to be it's function.