That's just the way they defined it. On the positive side, if you're a solar user the baseline floor for a 2-hour OhmHour is also only 2 kWh rather than 4 kWh so they help overcome the solar penalty in the status calculation.
No Mega #OhmHour this week, but had 3 regular OhmHours. No contest entry. Not that I'm expecting to win. Does anyone know anyone who knows someone who's won something during these summer giveaways?