The key in understanding how the certification process works comes through both the 12th Amendment to the Constitution, but also the 1887 Electoral Count Act which streamlined the contestation process.
A significant catalyst, a la legal action, or the state making this a point of emphasis for a change in the status quo with this issue is likely what’s needed for greater consistency.
The current landscape congressionally looks very similar to that of the 2016 presidential election cycle as we’re now only a week away from Election Day.