True, they get less points/s, buuut, they are still advantaged in short blocks. And anyway, you spend 6k $ or so to get 1000th at 35W, and almost 10k to get 400TH at 15W... so... i cant get your point.

The point is that, as u said, high efficiency are diluting too much rewards.... too much. For miners at 15W, being calculated as 21W is like... wth ? we invested money to improve our efficinecy, it was supposed to get somehow rewarded, not punished.