As I understand it;
Statcon is based on 95% (I think, don't have the paperwork to hand) of flights using the given contingency fuel for the specific flight. Therefore, you should expect to use ALL of the Cont fuel in 95% of your flights on the specific sector.
You should, therefore,
expect to land with 30 mins reserve plus Alt fuel.
If there are further delays and you have to commit or divert, you will have less.
If there's weather forecast in DXB, you are often given additional fuel anyway. If not, do what you're paid for and make a sensible decision!
It's not rocket surgery
