One of the best things about this show is that it isn't stingy about The Reveal. When the time is right for characters to learn the Arrow's identity, they find out and the story commences with this new insight shaping the course of the cast dynamics. Tremors finally brings together Oliver and Roy as partners and allies; definitively drawing together two plot-threads that have been running parallel to each other since Roy's introduction, and introducing Roy to the rest of the team – no take-backs, no psyche-outs, no back-pedalling.
For all its faults, Smallville didn't dither over "the secret" either, but after five years of Merlin I'm certainly not used to this!