Houthis don't have conventional military or air bases, no airports or command and control structures which are above ground, most of the Houthis targets are bunkers, ammo depots, vehicles and personnel, but for Yemen/KSA they have airports, malls, power plants, military bases, so even if a drone hit 50-100yards from that base or airport Houthis support will show it some victory, and failure from KSA, when in reality it is impossible to intercept every projectile, we saw the best interception rates in case of Israel but even they got several major nasty hits from Iran, despite their very very very tiny air space was protected by their own AD systems, American's, Jordan, France and UK's.