One of the realities of a Westminster tradition, of course, is this idea of confidence. Within the Westminster tradition is the caretaker convention, which suggests that government would suspend all activities until they have the confidence in the House. Presumably during the election that rule would hold, but the same problem about how you would go back from 90 days from the general election holds for an election in a minority Parliament.
The other question I have is, I don't understand how it's enforceable. While it is a good goal, it's not enforceable because it's happened already.