Quite a debate here and at the originating web site.
At the risk of being burned at the stake... 800 dead babies (bodies) may have been disposed of in this way by a single lazy person (grounds caretaker) who found an easy way to get his work done. Over a 20 year period (3.33 per week, it could have occurred unbeknownst to the nuns at the time. Anyone (almost) exposed to this type of constant flow of death eventually looks at the “body” as a shell of the past and not a holy vessel housing the soul. The soul is no longer in the body but in heaven, the body is nothing more than ashes to ashes. This could easily explain how this happened and it is no more a blight on Catholicism or Christianity than any other mass grave yet to be discovered in the forests of Europe or anywhere else in the world.
Knock it off with the sobriety.