Sharp - 100% - and both methods produce the same result as I've pointed out before. In descent, both methods result in you maintaining the aim point constant in the windshield. If the aim point moves down, you're overshooting - either reduce power to increase descent rate, then forward stick to maintain speed - or forward stick to adjust glidepath, reduce power to control speed.
Six of one, half a dozen of the other.
At the risk of promoting disharmony in the Mazda household, I would question this - in all these cases we respond with both throttle and stick. For example, in turbulence, yes we reduce power but we also increase backpressure and thus the combined actions reduce airspeed while maintaining altitude. If we simply reduce power we'll enter a descent.
Question for someone who has access to a plane (right now I don't, since I left my FAA licence at home ). Set up straight and level, trimmed for cruise speed. Check trim by hands off stick. Then throttle to idle. What happens immediately to ASI and altimeter? What happens then to ASI and altimeter? Just for good measure, what happens in the same situation if you lock your arm to maintain the same stick position?
Interested in feedback as to what happens practically. If I can wangle it, I'll try to get our A380 driver to check out how his machine behaves on the way back home.