Ahem. As I also mentioned at that time, this only applies to pentagram rituals and other broad-spectrum banishings, and does not apply to the Sphere of Protection, which is much more focused in what it banishes. Perhaps the Bellman's Rule will help:

The SoP is safe to do in a space with consecrated items.
The SoP is safe to do in a space with consecrated items.
THE SOP IS SAFE TO DO IN A SPACE WITH CONSECRATED ITEMS.