Who asks a 3 year old if he’s helping do the dishes??? I think your ex needs some education on child development!
At least the rest of the call was appropriate and your ex is behaving himself. I think the best one can hope for with someone on the narcissist/ sociopath spectrum like him, is that he will act like a good father so that he will look good in the eyes of others. This will probably happen more when he has a girlfriend observing his actions and less during times that he’s single.
My (much more benign) narcissistic ex looked like a great dad - so long as they were participating in the activities that HE wanted to do, and so long as they made him look good. Once they got older, developed adolescent issues, became more troubled - he became less and less of a dad. I hope your ex stays in relationships with women that he will want to “look good in front of”.