It is pretty clear..
That not everyone even read about the change as when I voted in the poll late last night only 9 of 14 had. The original poll posted with time limits was beyond confusing and until I got into work today after 4 days off, I hadn't seen Peegs email about starting at night.
It isn't going to ruin the draft or your night to give people an extra minute or two at the start of the draft.
PS-I voted for 5 minutes because I am going to be online for it and would like it to go faster, but I can see Moops point.