It's interesting that the entire discussion here clearly shows no real knowledge of the issues, except for what the media are drip feeding, and many assumptions.
Here's some insight.
The local authority allowed self regulation.
The quarry also supplied materials into northern Ireland. They have themselves stated that it was a different block supplied across the border.
The quarry changed names overnight. It still trades under that new name.
Families have already tried the legal route. With no ability for a class action, it was a bill of 40-60k to go to court. Legal people advised it was a waste in any case.
The local authority is apparently up to its neck in it. That's a scandal which will come to light after the mica redress is dealt with.
They are not the only supplier....
There are still poor blocks being supplied, as recently as late last year.
No matter what the size of the houses, they can't be insured currently.
This is not just private houses. Public buildings, hospitals, roads, farm buildings, community buildings, septic tanks, etc etc.
The LPT value argument is not relevant. That's related to market value. When the Dublin homes become involved, would it be acceptable in that case if a home valued at 800,000 got 100%, even if it cost half that to rebuild it?