I have made some amendments, as below. A problem remains with the analogy you have chosen, with newborn babies. We would not regard caring for newborns as 'knocking the rough edges off them'. On the contrary, it is the parents who have to 'fit in' with the demands of the newborn! Indeed, it is the parents who have to become fine-tuned to their new baby, so that they 'know' why a baby is crying from the tone of the cry, whether nappy time, a hunger cry etc. Perhaps if you saw 'fresh designs' as being the cherished off-spring of their creators, sent off to the proving-ground of the microcosm of the world that is the classroom and schoolyard. Or perhaps someone with literary editing experience could assist.
Fresh designs that are submitted for verification are like newborns.
It is the verification team that finds all the rough edges in them;
they help parents (designers) fine-tune their babies, for a time comes
in every baby's life when it has to leave simulated world and take
up its designated role in real life. Real life, as we all know, can
be rather ruthless. If it has, in its short simulated world,
seen all the situations it was supposed to face, it probably will
stand tall like a man; that, hopefully, will make the parents very
proud of their child. If it was not prepared to face certain
situations in life then it will, at best, crumble and fall (down-omit)
like nine pins. The uninitiated ones can wreak havoc,
like a bull in a china shop. They will then create such a disharmony
in the world they live in, the world of which they are a small links
of a much bigger and complex chain, that their parents, as well the
those who raised them, will have to hang their heads in shame.
Student or Learner