No... common sense makes it obvious that how a company structures WFH will go a long way in determining how productive employees are. If a company is monitoring computer time instead of overall results, of course people will find ways to game the system. Too many companies think time spent is the measure of productivity, it's not. Fact is WFH often produces more positive results with less overall effort. But some middle managers just can't handle the less in that equation.
The other thing that common sense should make obvious is that not all tasks are more productive in a WFH environment. With, other than boiler rooms, sales being one that often won't work well without at least some face to face time. Data entry though... should be a prefect fit. So in the end it's not the concept, but the tasks and how the WFH is structured that determines how productive it ends up being IMHO.