That's exactly what I have just found out. Good point and thanks for that.
Yes, you can skip the 1st map, but not the following. If you do so, you could lose the winning moment and that's the best part, basically.
There's also another problem, and that is time. A single map regularly takes 40 mins. It's more confortable for a viewer to watch 2-3 maps than 3-5. The same comes for players.