As was noted in today's daily update, Sasha Banks defeating Charlotte for the WWE Women's Championship on the first episode of Raw following the WWE Draft was a choice made to kick off the new era with an important title change.
Charlotte had held the title for over 10 months after defeating Nikki Bella for what was then the Diva's title at Night of Champions on September 20th of last year. But the decision was made to switch the title on Raw to give the show a championship change and big moment.
Dave Meltzer notes that the title change was initially supposed to occur at SummerSlam, and the Banks vs. Charlotte rematch is still scheduled for WWE's biggest event of the summer.
On Wednesday's edition of Observer Radio it was speculated that the switch was made because Charlotte was taking time off, but she has a packed schedule over the next few weeks.