Well,
IMHO
Sometimes long sentences tend to make someone not want to read everything.
As webmaster said short and simple.
It's just that someone who is searching for answers doesn't always want to hear a long explanation. When the point can be given in a short way, it gets it to the person faster.
Also perhaps this gives them the inspiration to search further to find out what it means to be saved.
Usually when you tickle the curiosity a little, they want more.
Hope I made some sense there.
-wilma