Satanic rituals require consecrated hosts. Only they suffice. If the psychological aim which you suggest held water, it could be achieved just as easily with an unconsecrated host, or something approximating the appearance thereof, since who could tell the difference? There would be no need to go to the trouble of breaking into Churches or sneaking them out at Communion time.
This is more than just play-acting. There is a significant amount of anecdotal evidence that those deeply immersed in Satanism can actually pick out a consecrated host amidst unconsecrated duplicates. Which should come as no surprise to anyone who believes that (i) Satanists are serious (ii) some are endowed with supernatural powers and (iii) the consecrated host is actually what the Church has always claimed it to be.
They're worshiping Satan. Period. Asking for his Satanic benediction. For that, they require consecrated hosts. It's that simple.
Rather, it is tortured analysis to presume a "consecrated" host contains a captured Jesus, unable to prevent his own desecration. No matter what "anecdotal" evidence there is, and I think it's questionable at best, the whole purpose of their ritual is one of blasphemy - and INTENTIONALLY outrageous to Christians. Just because some Satanist sneaks out a communion wafer to use in his ritualistic worship doesn't make the wafer truly God as if He is powerless to prevent it. Be reasonable. It's for SHOW. It's to get a reaction. And even IF Satan sits in on the show, it still doesn't mean he is getting something over God. It's sad that people think he can.
Imagine that! You'd think that someone who was "deeply immersed in Catholicism" would be able to do at least the same thing. Yep, that's quite the psy-ops operation these Satanists have got going. Gossip is a powerful tool.