You talk about "the 800" when the bones have not even been exhumed (the number "796" comes from death records, not bones). And we don't even know if they are children's bones: the building had been used decades before as a workhouse during the famine, when the death rate in West Ireland was staggering.
You ignore evidence that after the Bon Secours sisters acquired the property, coffins were sought for children who died (e.g. "according to an advert placed in a local paper, the Connacht Tribune in 1932, the Home was tendering for coffins.") You ignore paragraphs like these:
"The Connacht Tribune records that Tuam Sewerage Scheme was to be extended to the Children’s Home in 1928. Is it possible that during this period existing graves were exhumed and the bodies reinterred. The boys’ description of a pit with a brimful of bones suggest that the bones could at least have been adult, it is unlikely that babies’ bones buried in shrouds would have been visible 20, 30, or 40 years later. The grave was explained as belonging to famine victims – presumably this belief would have had some basis? Prior to being a home for unmarried mothers, the building was a workhouse for famine victims."What we do know is that often bodies were exhumed during the road building process in Ireland and not reinterred in a respectful fashion, even being dumped in drains in some instances. It is feasible that the children were buried correctly, even on consecrated ground and then later moved during a redevelopment of the site. This is why decent forensics is vital."
In other words, without any real investigation being done, it is presumptively trumpeted in the press that the hundreds of children died during epidemic years were tossed in a sewer.
When the bones were first found, in 1975 --- 40 years ago, OK? --- the Home had already been closed for 15 years, roads and sewers built, and the property extensively remodeled. In Ireland, as in many other places (e.g. here in Tennessee) when construction uncovers unmarked graves, the bones are all reinterred in one place.
We are pondering the heartbreaking deaths of children with infectious diseases (the records say TB, measles, gastroenteritis and pneumonia) at a time when there were no antibiotics, and when people abandoned sick children at convents and orphanages. Who could be surprised at a high death rate? It's like being surprised that a hospice and palliative care unit had a higher death rate than the surrounding county.
Let me go on and say that the same media and political powers which are heavily promoting abortion, gay marriage and euthanasia in Ireland, have found another way to inflict severe --- they hope, fatal --- moral damage to Church institutions. When they finally extirpate Christianity from the hearts of the Irish people, they'll have many here who will applaud their success.
Again, just how were the bodies of these almost 800 unfortunate children at that home disposed of, who died at a rate four to five times higher than in Ireland as a whole?
Where did they go, if not into that septic tank?