XPac is Right, it has been official Stated as Canon that Wanda had a form of power that was not her own and after it was taken by Doom was not able to get it back or make more mutants as she originally planned. When she Had it she gave back to Rictor his mutant powers, after Doom took it it gave him Godlike powers for abit Until the X-Men and Avengers stopped him and Wanda was not able to make mutants on her own anymore cause of losing it.
Now if Children's Crusade is not enought, it was Offically Stated Doom did Tamper and Manipulated Wanda and her powers in other Comics after Children's Crusade. It was Known and stated by Wonderman in
Uncanny Avengers #13, Vol.1;
Now if that is not enough either back during the
AXIS event in 2014 in
Avengers World #14 Doom after being reversed by the AXIS event to being good for a Short time Admited in manipulated Wanda as well;
By these Possession and/or Manipulation Stories with Doom are canon and amitted as well too by Doom, so it is the offical stated case in Canon by Marvel that that was what happen to Wanda.
But really the most important factor to take from The Possession/Manipulation story is are where to Show Wanda was a Good Person used in a Bad way and not in character(kind of like how many fans feel she was used for a time by Marvel Writers in the 2000s during this M-Day stories). The Wanda we she after thoses stories starting with Children's Crusade shows the character a she should be and trying despite having this outs not taking them and taking it still upon herself to set events right.
In Those Panels from Uncanny Avengers and other she still takes the Guilt onto herself not using the Manpulation as a crunch to say she does not have to do anything or help make up for Anything. Still she takes it upon herself and with Stories like
Children's Crusade, AvX, Uncanny Avengers and Now Recently X-Men: Empyre still trys to make things right by the events of M-Day and that is what I admire her for.