Unless you have an actual need to write a lot of 7s in a row and then rush off and actually do something you otherwise wouldn’t have been able to accomplish had you omitted them, you can’t claim that as usefully saved time. The tiny fractions of time by themselves aren’t enough to do anything on their own therefore the total amount of things you have accomplished in your life would be the same whether you added the lines or not.
I used to play a high level monk and had, I don’t even remember now, but something like 20-30 attacks per turn. Rolling for all that was bad enough. If you were playing with actual dice rolling 120d4 would give everyone else a chance to go to the store every time you took a turn.