@Remedi: The mentor mount is different from the hunt mount. You can always go at this with your own pace so if you have lots of time on your hand you can grind this out. The hunts are on a schedule and the S rang are even more limited. You can only kill a certain amount of S per week (now its a bit more thanks to the instances but you also have more people killing hunts) thus if you miss it you will have to go at it for a longer time. Also the hunts from ARR and even HW die way too fast. So if someone is working at the time that a lot of them spawn..well no amount of free time on the rest of the day will help them there.
There was a thread about this on the forum and someone calculated that if you want it and never did many hunts before, that you will need at least years to get that. And this is only when you will get each one of the hunting monsters.. Even those that said that they see no problem with it and that they hunt a lot, just had like half the necessary amount to get it. That one person that got it was the leader of the biggest hunting ls on Balmung. Like the PVP mount this one was wanted by quite a lot of people, yet instead of making it a tank mount (like the Kirin for ponies) or something else more accessible they put it behind such a wall..
I never said that it was easy but I do sometimes wonder who thought that some of those decisions are fine?