Just test it and see how your Sacred Soil will cancel the Asylum. You're misreading the tooltip and ignoring the fact that I have tested the thing. I have absolutely no interest in telling lies to make AST look good. The more SE buffs the job, the better for me, since I main it. It can receive 50% more healing potency for all I care, it will only make me more desirable in raid groups, not the opposite. However, if you don't believe me, test it yourself. Go to Idyllshire, get a WHM in your party and ask him/her to cast Asylum in a spot then cast Sacred Soil on top of it. You'll see how it vanishes. After that, get an AST and ask the WHM to cast Asylum and the AST to use collective unconscious while under the WHM's bubble. It's simple.