So far I have little to go on; the churches in my area are now, I hope, getting their teeth into the new legislation, and so far I've only had one query about the 'Responsible Person' which I've had to pass on to the legal bods.
Most churches, particularly the older ones, tend to have the smaller congregations, so both capacity and MoE are not usuallly challenged. There is the occasional wedding, funeral or other special service where large numbers may turn up, but this is often known about in advance and the necessary arrangements for overflow accomodation with Audio/visual relay can be made in advance. The 'younger' well-attended churches tend to be in the more modern buildings and so far I've not heard of any problems.
Because of the new nature of the regulations we have asked churches to send the diocese a copy of their FRA so we can check on how they are coping, and if there are common areas of difficulties, be ready to offer more advice.