That is also true Virgil. When a data packet has to traverse a different route back than from where it came, the chances of more problems occur.
Look at it like this. When you drive someplace and arrive on time and safe, you know you have a good path back to the original destination (i.e. you go back the way you came). If you decide to take a different route on the way back home, you could get lost or held up by construction or other problems.
Same with data packets traversing a different route back. The unknown quantity is, "will it make it back on that different route?".
