Wide Open Div A Tourney? Dominance of the Big 5?

All the talk about how wide open the tournament is this year. Sure looked like it all season. But now, two semi-spots are guanteed to be held by the Big 5; #4 vs. #5 and #2 vs #10, and another seems likely #1 vs. #8. On the other hand, this year's #1 v #8 is probably closer on paper than that game has been in a long time.
Congrats to all the teams.
Congrats to all the teams.