My group have been playing the game for 2 months and after we unpacked our core sets we saw that the Hand, at spell cost 1, was just too good not to be played in many builds. And, after including 3 Hands in our builds, it was almost difficult not to make space for at least a single Temple of Light. I've already played a pack consisting on 3x Hands, 1-2x Temple of Light and 0-1x Temple of the Dawnbreaker depending on if I played defenses in many builds: wizard, priestess, warlord (not very spectacular but I had to try it) and, of course, forcemaster.
I already thought that these two cards (hand and ToL) were very good, but having read piousflea's comment about Origins being overwhelmed by them just made me happy as that means I am learning the game at a good pace
Still, maybe we should give veteran players some time to adjust to this holy invasion before artificially changing anything. Or some spell could be added to the next expansion to keep this in check if another solution is not found.