Total crap!!!!!!! Don't pay any attention to what she has said. As the mum of a now 5 year old who has spent most of her life sleeping with an adult I can safely say that babies are unable to manipulate!!
DD 5 now sleeps completely independently, at your child's age she was sleeping every single night in my arms and feeding frequently. At no stage has she been left to cry or had any sleep training.

It is completely impossible for a baby to do anything other than communicate a need.
How sad that a trained professional does not recognise this.