No, Tooley and Posnert didn't write that. What I quoted from them was only about the Maldives.
Here are some quotes from the PDF which relate to mean seal level. Where do you think Morner is lying?
"And then we can see that the sea level was indeed rising, from, let us say, 1850 to 1930-40. And that rise had a rate in the order of 1 millimeter per year. Not more. 1.1 is the exact figure."
"Now, back to satellite altimetry, which shows the water, not just the coasts, but in the whole of the ocean. And you measure it by satellite. From 1992 to 2002, [the graph of the sea level] was a straight line, variability along a straight line, but absolutely no trend whatsoever. We could see those spikes: a very rapid rise, but then in half a year, they fall back again. But absolutely no trend, and to have a sea-level rise, you need a trend."
"Then, in 2003, the same data set, which in their [IPCC’s] publications, in their website, was a straight line—suddenly it changed, and showed a very strong line of uplift, 2.3 mm per year, the same as from the tide gauge."