Those videos at Expert Village definitely have some incorrect information in them. The one piece of misinformation that Wes says that sticks out in my mind the most is something along the lines of "Flytraps need lots and lots of water. They should be standing in water all the time." which isn't true at all.
In tissue culture the seedlings, leaves and traps can grow much larger much faster.
They sure do! In a matter of a couple of months, you can get a plant that's an adult. In about five months in the jar and a few months in good ex vitro growing conditions, they can grow to very mature sizes out of tissue culture.
Leave the meat for our pet plants