Ok, so we know the Titans are mathematically alive in the playoff race. Let's take this to the extreme.?

Yes it is possible for the Titans to get the 5 seed, but the website runs the remainder of the season a thousand or so times and all the games needed to go in their way never did so together. That is why they have a 0% chance accordint to the website of getting the 5 seed even though it is possible.