For most of you regular users of Dubai, you probably know that, at certain times of the day, you're bound to get some holding and extended vectors. To be brutally honest, in the end stages of a tactical session of sequencing, I doubt that fuel considerations are high up on the list of factors and priorities that the controller is thinking about.
Please, just fly the speeds and carry extra fuel from the start! Yes, I know the bean counters aren't going to be happy but the reality is, it's very busy at well-known times of day and only extra fuel will allow pilots and controllers the peace of mind in knowing that planes aren't going to start calling min fuel at awkward moments.