I was amazed after a few months into my own recovery to recognize just how judgmental people are, myself included. And how nice it is to give up that need to pass judgement on others. As the risk of sounding dismissive to how you feel...say a prayer for someone who is obviously so insecure about her own parenting that she has to attack yours in a public manner.
And hold your head up high - you know the real story behind the scenes, and you are going to need all the strength you can muster to face the real monster in the room.
You're doing great, wtbh. Stay strong!