Are you serious? You post the last sentence of my post, and ignore everything beforehand?
Very well, for your sake, I shall reiterate.
Blood magic is using the blood of yourself or others to power spells, this is the very description of it in the class spec. And it, by the Chantry's own view, goes beyond this, as Finn shows us in Witch Hunt. He needs Ariane's blood to scry for active eluvians not corrupted by the taint to help track Morrigan, and the Warden can ask if it's blood magic. Finn outright says that the Chantry may consider it blood magic because it's using blood in the ritual despite the fact that the blood isn't powering the spell but rather is just a component.
Also, the codex entry on maleficarum (a sermon by Justinia I) defines maleficarum as anyone who uses the blood of others to power spells.
Also, the item description for the Tome of the Mortal Vessel makes it clear that many (it doesn't say the Chantry, but many) outright ban the study of anatomy because blood magic is so stigmatized that anything involving blood whatsoever is considered blood magic.
Now, what is a phylactery? It is blood taken from a mage apprentice after they arrive at a tower, which is preserved in special vials. This blood is used to power the phylactery so templars can track mages.
If you remove the blood, you no longer have a phylactery, period. Therefore, by the Chantry's own practices and definition, a phylactery is nothing less than blood magic.
Phylactery's don't work without blood, kind of like other blood magic spells that only with when powered by blood.