The shock was precipitated by their choice of location - they're off to the United States. For an organisation born from opposition to American intervention in Irish affairs this seems an odd choice.
With this thought in mind I reviewed a previous post touching on their most recent ancestor. Their split from Human Life International did not seem to include condemnation of their opposition to vaccines and I wondered if this was an area of disagreement.
It is not.
Take their Ethical Vaccine for Children Project:
The “Ethical Vaccine for Children Project” is aimed at applying pressure on the Irish health authorities and pharmaceutical companies to oppose the use of vaccines based on cell lines derived from aborted babies' tissue. In Ireland the MMR (Measeles, Mumps & Rubella) vaccine is produced using cell lines that originated in the abortion of unborn babies, despite the fact that ethical safe alternatives exist.and continues with the comment:
The text of their leaflet is not provided, and if this is the reaction it inspires I can see a rather plausible reason why they would choose to keep it concealed.