Not so sure they have a complete say in the matter. Policing has to be taken into account. ( eg police availability. Public disorder etc) There has been trouble around these fixtures. Bringing the ko forward reduces the chances.
On a positive note, with our DST now being out-of-sync (we sprang forward last Saturday / Sunday), it's now a 5:30 kickoff, not 4:30. Yeh!!!
So how does it work when our clocks go forward last Saturday in march.... You then back to square one? (Sheff utd game being the exception)
To my great surprise the commentator as just said the Sheffield u game is on the red button. Apologies to @twillo