There is no need to do a challenge on day 1 or spend 12hrs+ trying to get a clear. The reason one ends up not enjoying X content is because they willingly burn themselves trying to be the first to clear. Enjoy the content for what it is, challenging, that extra challenge people have been asking for. Try for 2hrs, then try another time for 2hrs but if you're doing raids for 10hrs+ and then complain that it's SE's fault that chose to raid that long, the fault is on you.