Well, looking at the rewards, I'd say so. I mean, have you looked at them? I can easily get 35 points
without that quest, but if I do that quest and get 50, I get (as long as it's the same as .net):
+10% increased wood production (20 hours)
+10% increased clay production (20 hours)
+10% increased iron production (20 hours)
+25% reduced construction time (20 hours)
2 days of free premium
25% reduction in construction time, the resources to make up for it are easier to come by than you'd think, plus free premium. And that's excluding that you might get more quests done, that can give you more flags, 1/3 capacity of your warehouse in all res, and so on.
All in all, I think it's worth doing
.