You don't have to because achievements still aren't required. But that just means people who don't care much about the caravan would actually see the quest involved.

Really, I don't even know why people argue this. Achievements and trophies will be implemented, so the people who like them can go for it and the people who don't can ignore them. Where, in that, is the problem? Is it just that it wasn't done in the nineties, since that's where most gaming complaints seem to come from nowadays.