I personaly think light is the weakest element. When the best creature is the flown weapon, there aren't a lot of options.
The dragons are one of the strongest (if not that, most durable AND immune to early Otyugh's, creature control, poison, Paradox, etc.)
cards, and Rays of Light have been known to piss people off in the RoL + Hope + Fractal decks. I do agree they need a few more creatures to be recognized, however...