It helps you by educating you about things that "make sense" to experienced users thereby eliminating misconceptions.
However although there don't seem to be any flags that would do what you want this short little script would (assuming the package is installed):
for file in `dpkg -L <packagename>`; do if [ -f $file ]; then echo $file; fi; done
Just input the name of the package you want in place of <packagename>.
The script tests each file output from the dpkg -L to see if it is a regular file and then outputs it to your display if it is - if it isn't it won't display it.
Using [ -d $file ] in the above would show only the directories.