1. In this game no one is forcing anyone to anything.
2. Player health should be his/her primary concern and if someone wants to spend countless hours on something its their call.
3. People who spend more time waiting for the plot to be available have a right to have an advantage over others who dont want or cant.
4. People who can spend more time in the game will have all sorts of advantages over others who can play only few hours per week if not less.

A side note: There was quite few situations where someone was camping for hours and then lose the plot to someone who just logged because he went to the bathroom. So i would say lets do next thing - for each hour someone is camping (and the game will check if he is afk or not) for him the random timer will decrease by 5 seconds. In other words, lets say for some X plot the game put a random timer of 12 hours. So for each hour someone is camping for him/her the timer will decrease for 5 seconds. That means if someone was not afk and next to the plot for 11 hours for him the timer will go off after 11h:59m:05 seconds, or 55 seconds before others. In this way he will ger fair chance to grab that plot and not lose because of 30 sec of bathroom time. If that person goes afk or move away from the plot the bonus will reset.
I would say this is fair - lets reward people who spent so many hours camping some plot and not breaking the game for others.