I definitely would seek the best possible shelter for myself and my family no matter the time of day/night.
The new warnings provide more clarity which is important. Tornadoes are deadly and people who have not seen the results of a tornado my not appreciate that. These warnings certainly remove any confusion. However, point of impact accuracy is still lacking which may eventually lead to a kind of fatigue. We have a tendency when people don't listen to us to talk louder. This gets people's attention but only for a while. Eventually, people tune out the increased volume. If you cry wolf too much, people will not believe you when the real wolf arrives. Hopefully, this will not happen but should it happen, what will be the Weather Service's options at that point? I applaude the Weather Service for what it's trying to do. Only events will tell us if these changes will be effective and long lasting.