When i saw this thread’s question, I immediately thought about the children at Fatima, how they were praying their rosary really quickly and somewhat in sloppy fashion by only saying the phrase “Hail Mary” and “Our Father” instead of the whole words of the prayer. This was right before the first apparition’s appearance, so I would say it must not really matter! I think they were just saying it to get it over and done with so that they could play while they stayed with the sheep. Perhaps The Blessed Virgin got a chuckle out of that, but also decided to do a spiritual act of mercy in instructing them a bit.
I would suppose it was better than not saying their rosary, which they could have opted to do instead.