The only people I ever heard talking about something blocking the flow of holy spirit to the congregation, were people who were up to no good themselves.
I remember one elder I knew asking a few of us ministerial servants if we had any ideas as to whether something could be blocking the spirit, when I personally knew he had a terrible relationship with his wife, was jerking off to teen porn, and was spending increasing amounts of time with his bible study's baptised sister whom he eventually ended up marrying after faking a scriptural divorce from his then wife. Not that she minded, it was the best thing that could have happened to her in all honesty.
It's usually an admission of guilt, however the dream ticket is to find some other sucker to pin it all on, then you can get on with normal life again and noone suspects a thing. As long as there's a sacrifice on the altar of wrongdoing, any old sacrifice, atonement can be obtained. Amen.