Not much has changed. The entire water level in the loch was slightly higher than before, who wonders after days of rain, but not much. The valve was maybe knee-deep instead of ankle-deep. For the record, here a particularly boring picture to illustrate the situation.
This picture, taken from the northeast ridge of Carn nan Gabhar, by default now my new favourite Munro, shows the entire loch from the north and the valve in today's world:
Contrast this with the aforementioned image from October 2005, taken from almost exactly the same spot. The entire coastline around the valve seems to have exploded in winter 2005-6. What the hell happened here? We have a right to know.