Becky's barely done anything of note for several months up until now lol.
They cheered her because fans aren't stupid. Becky fought her way up for months to get a title shot, Charlotte returns from her boob thing and gets gifted a title opportunity, and steals the victory from Becky. How they're portraying Charlotte as the face in all of this is beyond me, because Becky is clearly the underdog who found an edge needed to succeed now after having the odds stacked against her for so long. Fans aren't going to accept this story at all if they try moving forward with Becky as a heel. This should simply be another layer added onto Becky's face character, and if the company were smart, they would do it as such when she cuts a promo on SD NOT turning on the crowd, but telling the truth about the differences between Charlotte and herself.