I wouldn't wait until the vacuum tells you the bag is full. Once a bag is about 1/2 full is starts effects how efficient the vacuum is. Make it easier to clean and change it before it's maxed out.
It really comes down to the material of the rug and carpet. Delicate fabrics need a little more TLC when you're cleaning, otherwise you risk runing the rug AND your vacuum (lots of threads can get stuck). When in doubt, be gentle.
I can see what they were going for, trying to make cleaning up kitchen spills/messes quick and easy, but I'm not sure it's necessary. What's wrong with a quick wipe down? Plus, how many kitchen spills are only going to be on the counter?