I dont think that the tide would make much difference, might be more about the camera angle and wave action at that moment. From the JTB online site:
"The tides around the coast hardly vary. The difference between high and low tide is never more than 16 inches (41cm)."
The picture in the article seems to show that tree much farther from the waterline although it doesnt state when the pic was taken. I think the real point here is that the pictures from 2006 and 2015 give everyone an idea on how much beach has been gained and all the talk of beach "erosion" needs to be analyzed a bit more.