The fact of the matter is that sometimes you're not going to make it to a hunt in time. It happens. It can happen even when you're in the same zone if it's a large zone like Western Thanalan (if you're in Hammerlea, there is no way you're going to be able to make it all the way up to the Castrum in time).

And it's not a big deal. I have a slow-loading computer that means I miss a lot of hunts if I'm not in the zone looking for them. Do I blame other people for not waiting on me? No. If I miss it, I miss it. If I want to hunt seriously, then I'll be in the zone looking for the mark. Interestingly enough, whenever I do that, I make it there in time almost every single time.