Heh, I think you're over-thinking it, committeechairman. They're just drawing attention to all the building work being done and hinting that contributions will be needed for it. It has to be phrased in an indirect manner because they refuse to outright ask for money, lest the ghost of C.T. Russell come back to haunt them with his words about soliciting funds.
I appreciate your point about the the foolishness of ceasing the use of people's homes for meetings. But there's nothing stopping them from re-instituting it if they see a need. I've been saying for a while that it's impossible for the religion to actually go belly-up because, even if they could not afford to rent or build facilities some day, they could just go "hardcore first century" and hold all meetings in private homes. Certainly, though, that doesn't seem to be the direction they're going. With all the investments in Kingdom Halls, particularly wiring them for streaming video broadcasts, they are committing further to long-term use of the KHs.