Chrissy Teigen and embryo gender selection decision

Recently model and TV personality revealed the gender her and spouse Jon Legend have selected for their expected child. If you follow Chrissy Teigen you would know that she is very open about her being infertile. She has gone through a fertility process. she shared this with social media via twitter. Some people on social media have been bashing her for choosing the gender of her child and not. Some one stated that why is it important to pick the gender, what if the child decided it wanted to be a he? What are you guys's thoughts on this comment.