See @Evabear13 how so you know that the family judged by the OP hadn't had a whole week of no screens and then gave up for the nth meal?
If it were my family, ALL meals at home are screen less, ALL meals out are screen less, the WAIT for meals might have a screen, and might not.
That said, I insist on low volume, or as finally at age 15 years old, toddler headphones now fit, headphones.
I sincerely doubt all families use screens all the time, but do you know what, if they did, is it any business of yours?
Issues like this make me so angry. I shouldn't let MN regular rants about screens at meals put wind me up so much, but it just does.
I am not a member of the family mentioned in the OP, so I do not know if it's a thing they do a breakfast times only, all meals out, or all meals, nor do I know why, nor do I WISH to know why because it's none of my business.
I just hope I never eat out at a place where those of you are judging are! Sure it's not likely, because for my children's sake and my sanity we RARELY ever eat out!
As I've said before before, meltdowns hav caused me to leave a meal after ordering/paying because it was better for all, especially others around on other tables if we just left.
Yet all many of you can focus on is that someone somewhere used a modern tool to aid a situation that quite frankly, is nobody else's business but that family's!