1988 wasn't putting the band on ice - Midge and Chris both left and encouraged Billy to carry on with a new band.
Midge's comments on the current situation are pretty clear that, while they haven't discussed further activity, he's open to it, but he doesn't understand the comment on Billy's website.
Maybe the fact Midge said they haven't spoken for two years is a factor. That might lead Billy to think the others aren't interested. Although there's a suggestion Midge has tried to keep in touch and got nothing back, but I may be reading that the wrong way.
But it's all speculation. We can't know what Billy means unless he chooses to elaborate.