Not trying to nitpick here but it's not like anyone can see a single star anyway with all the light polution, WTC or no WTC. And there were those annoying columns of light for several months that even further illuminated the heavens.
But I do understand what you mean in theory. I just don't think Bowie meant that, cause he would know about these things, having been here.
Don't believe in yourself
Don't deceive with belief
Knowledge comes with death's release