I thought that the matra was that JW follow/mirror OT events. Case in point: Fall of Jericho = Great Tribulation, so on the 7th day they march 7 times not once. So not much speeding up if you have less and less meetings. It would be similar to asking the Jericho marchers to only go 1/4 around and then march back on the last day - rather odd.
The GB have the same capacity for logic as polititians. Polititians think that economic stimulus is through tax cuts to increase spending, whereas tax cuts simply increase saving. In similar fashion the dubs simply take that saved time and not spend it on FS, study or anything related spirtually rather they save it for some other more enjoyable pursuit such as putting their feet up at home.
I also suspect that the average dub is simply not giving the $$$ at the SAD/CA like they might of years ago, thus the GB is finding they are a loosing proposition. When things don't make you money, bail and bail fast - 1 day circuit assemblies make sense when you look to cut costs. Watch for off loading of those Assembly Halls to increase and the renting of the local Holiday Inn for a few hundred.