Badger, I did work for a former employer over a decade ago, which was government where compressed work week program was offered as an option.

Unfortunately the head honchos took it away because they discovered alot of people weren't working their full longer days. Missing people were noticed when experts in the organization were desperately needed to assist in investigations and also to respond to journalists/press. All it took was a few bad apples to spoil it all for everyone else.