I don't think it makes a HUGE impact. I say this because I think if they feel any pressure it boosts the "oh good, sign of the times, end is close at hand keep doing what we are doing" mantra.
My sister just invited me to her assembly last week, she said i might hear something i liked. I told her I listened for about 20 years and heard nothing, so sorry no go. She said what she is really enjoying about assemblies these days is that the GB isn't leaving much to your conscience anymore, not a lot of grey areas, they are telling people exactly what to do in situations. She feels a great relief. less thinking for her. for those deep into it i think pressure is what they thrive on. I didn't leave beacuse of the internet, but the internet is helping me now find out a lot of reasons why my gut instinct was correct.