This may offend some, but frankly, I don't care. If the only Bible some people get is from a sermon on Sundays, whether it is 10 minutes or an hour, then I question if they are truly Christian. Part of having a real relationship with Christ is a desire to know him more. You can't have that growth from only listening to a guy speak on Sundays.The reality is that for a lot of people, that's all the bible they're getting for the week - dumbing it down does nothing but make it easier to fill the pews.
I'm not saying you must read your Bible every single day. But there should be a desire to study his word in some fashion between Sundays. That can be meeting with others for Bible studies, listening to audio devotions, and times of prayer throughout the week.
If the only Bible you get all week is on Sundays, then you are just going to a club meeting. You have no relationship with Christ. Can you imagine if I only visited with my wife for an hour or 2 a week, would I really have a marriage?
I'm sorry I'm jumping on this soapbox, but it is the thing that bothers me most about "church". I wish the "Sunday Christians" would just leave because they are bringing the rest of us down. Don't get me started on the ones who only show up on Easter and Christmas.