It is not sacrilegious. Know this. This way of storing and transferring meaning into INHERENTLY holy Magica is simply a way that was DISCOVERED by Demons first, not something that BELONGS to them. 

This was surely the language that our lost God communicated in, found and corrupted by Demons. We are simply taking it back, reclaiming what was lost.

Prior to the Snow Queen's discovery of crystalline storage, Demonic script was BY FAR the most efficient non-organic way of storing Demonic Energy and "meaning". Combining the two has allowed us to MASSIVELY increase our control. We CANNOT ignore this.

For too long we have blinded ourselves out of fear of transgressing. The light of knowledge MUST illuminate our path, no matter the fuel.

-Argument put forwards by the Highest Angel, changing Canon law to allow the use of Demonic Script