Does Virgin use licensed dispatchers?
Someone mentioned putting V-speeds in the loadsheet, but that can only be done if other performance factors are done by someone else before the loadsheet is passed on to the crew.
Most major airlines in the US get their performance data from their dispatchers and plug it in. Maybe this helps to add redundancy to the system in that you have an extra set of eyes removed from the cockpit.
I'm not saying the American system is perfect, but I can't think of any such failures with regards to TO performance errors like this VIR and UAE incidents. I know that many dispatchers in the US are licensed pilots, and I would much rather have more human safety systems in place than another computer system.
A new computer safeguard would only take us to the next weakness, and then we'll be debating the next computer safeguard. All I'm saying is let's bring the human aspect back.