S02 E24 - I was wrong, Shadow People are more powerful than Demons!!

I was wrong, Shadow People are more powerful than Demons. The entity was able to shut of the Other-Side. When I would try to connect, the Other-Side was blank. No activity whatsoever. My best guess is that they are so powerful, than the other Evil Spirits, including Demons back off due to them. I always thought Shadow People are a little bit more powerful than Demons. That was my mistake in thinking I could work thru this. They are considerably more powerful.