I can't remember the exact line, but Wanda saying at the end that the people wouldn't understand or forgive her, so she's sorry to MONICA! Ha! Then fly off time, doesn't stick around to help out, doesn't stick around to make amends. And in reality, this event would cause a second accords act, it doesn't even make sense how she could willingly fly off and not be held accountable within its own universe.
To be fair, it was the finale of this particular show and this is an ongoing universe. All of this can be addressed in the future and probably will be in the Dr Strange sequel.