Hello Arphy, excellent topic!
1. I have yet to experience such a sermon in my church. But I am involved in leadership there, and have mentioned talking about it to my Pastor. Hopefully in the near future I might be able to give a talk on it, or perhaps create a small group about it.
2. The leadership of a church usually does not contain scientists, or scientifically minded people. My Pastor is probably the most relaxed on the subject out of all the leadership. It is a touchy area for some, and not necessary for some people to be concerned with. The reason being that regardless you are going to need faith to believe.
3. Again, not too many scientifically minded people in church. The younger people who go to college are more likely to be involved in such discussions. It is a challenging subject, and one that tests people's faith.
4. I don't know what you would apologize for. But there always seems to be a reason.
The only reason why I want to talk about it, and why I have continued all these years to be a part of this forum, is that in my heart, I don't want it to be a debate. I would love for the two to co-exist together. I want to educate people, especially those with evangelistic gifts, and a heart for spreading the Love of God to others, to be sensitive to it. Science and logic are very tangible and real, but so is love. Neither one is absolute.