I think the title of a poem is an underrated aspect of any poem itself, that being said i don't think you could have put a more perfect title in my opinion, because it really details to me the beginning line to the end line and enhances the poem.
I am going to take this line by line when i comment :).
The first line has me reading more into the poem as needed xD, but i am going to take the very first word "as". I think you used "as" because there is something wrong and they will not be fed the milk that they need. If you used "when" instead, the baby would have been fed. So i read it as the baby is not being fed and because of that they are crying.
Line two- This is a great line because it 100 percent continues the first line perfectly. So the babies are not getting fed because the parents are preoccupied with something that they think is more important than their child. In reality nothing should be more important.
Line three- The ending wraps up the poem well. So to continue the parents are nourishing their phones instead of their child, which i think is true in the world we live in nowadays.
The poem tells a story within the three lines conveyed, which in a senryu i think is the most important thing, you tell the story well. And i didn't see anything to criticize. Excellent work.
A painful reality and it works both ways...now children too
are soaked right inside of a phone with so many apps out there to
capture a child. Then again who do you blame...the parents, the kids
or the phone. Good write Ben.