I'm slightly confused. I'm bronze and hurtling back down to blue (as a result of being permanently based in .be and eurostar now representing a better choice for where I need to be in the UK on the few occasions I need to go back).
But, I was getting offered multiple seats from rows 21 through 25 as noted before, and in fact still do see that when I just checked again. I've not seen the scenario noted above where only the one seat was available for selection.