I think that just gives the usual suspects an opportunity to drink more.
The Friday 8pm kick off is perfect for those who might not usually have a drink to have a couple.
Then a follow up 8pm a couple of days after might repeat the approach.
Just a theory, but there was definitely more people...
I think evening games also provide the opportunity for a higher percentage of fans to have had a few drinks before hand.
Less inhibited singing ensues..