SR is not a minority move! It's on heaps of teams, and entry hazards totally cripple Denchura, allowing for a possible 50% cut in HP and Badly Poisoned status on an incredibly frail Pokemon (while this is somewhat countered by good resistances). On topic, 70/60/60 Defenses aren't as bad as Mienshao's and while Galvantula hasn't got Regenerator, it does at least have Volt Change to escape bad situations and damage 'slower Fast pokemon'.