If your husband have a visitation right and his ex have fail the follow the court order then your husband have a right to go back to court to enforce the court order.
Last monday I had to go to court to get a full custody of my son and I won. Also my exh have not pay the child support for 2 yrs and I filed contempt with the court and I dont know what the outcome of it yet til I get a letter.
So meaning if his exw doent follow what in the court order then have him take her back to court and request a court order to have her to follow the court order.
I would be pissed if someone say that to me and I would tell them that they do have a problem with their self esteem.