Clearly Jason made the right choice for the situation. I think the broader issue here (at least from my perspective) is how experience and familiarity can lead to the such a question even being asked.
I understand that for weight purposes, the original flight was made with just enough fuel to handle reserves. But as a fairly new pilot that's having fun tooling around in my Piper Warrior, I can say that I start to get very sweaty when I have anything less than TWO HOURS left in my tanks.
Seriously, my plane is generally rated at 5.5 hours of capacity at economy-cruise, and I measure my hours vs. fuel use at every fillup. I have yet to put more than 34 gallons in, which is about 3.5 hours of flight time. I know I could go more, just not comfortable doing so.
I suppose as I gain experience, there will be that one time where conditions are fine and the risk of extending that extra hour will be acceptable. But one of my favorite sayings generally holds true: the only time you can have too much fuel is when you're on fire!