Just expressing my opinion. They are bad for framerate, chunk building speed and at most 10% of players use them. I'd rather see more tier 2,s 3's and 4's, those huge ones take way too long to play and too long for us to develop. If we could develop teleport tech and make them dungeons I'd be all for them, but big framerate hogs in the middle of limited town real estate is a bad choice. Its a neat novelty then after you've done it its a waste of space because nobody in their right mind will want to do it again. We could make 5 tier 2s, 4 tier 3s and 2 teir 4's in the same time it takes to make one tier 5. Now which one adds value?
I say let the modders do that, we have bugs to fix, and pois to overhaul yet and a severe lack of tier 3's IMO. I'm not doing level design any more but I think the average player wants more unique tier 3's and 4's. I'd be ok with smaller tier 5's but no more giant ass factories that take 2+ real hours to clear out that only large groups can do. There is enough of them for now, maybe add more when we get everything polished up, there are still lots of crappy POIs that were blocked out 3 years ago that need that professional overhaul.