What are you doing with the Herald Buff?

So, since Preseason showed up on the PBE I've had a fun time playing toplane. It has been nothing too spectacular, but it seems that whenever I win my lane it is apparent to either me or the jungler that someone should take the Herald buff. Herald buff is nice; while the monster hits like a truck and has almost killed two of my junglers (one died to a karthus ult immediately afterwards), the end reward should be worth getting, right? You can then just drive down a lane and put down enough pressure to scare off the enemy jungler.

So, surely the one that gets the buff needs a plan. Three times now me and my jungler have started killing that thing and it's all clear that the jungler just straight up wants it. He pings On His Way to it, and then Smites it. His health is so low that he is forced to go back. He gets his items, runs back into the jungle, and finds out that he has a quarter of the buff wasted. He takes a camp... ganks MY lane, doesn't even stay to give me the empowered minions, and then goes elsewhere to do nothing at all. I know it's preseason now and gameplay patterns are starting to change, but I've found this quite ridiculous. Players need to read tooltips and patch notes, I swear.

Since the Herald does a crapton of damage even to tanks, I get the idea that you'd need to go back afterwards. In this case, Herald may actually make TP more useful since it lets you get out of base (after going back) to get to botlane to stir up some trouble. So, what is up with that Herald buff? Is the monster damage too high, is the buff even worth taking against waveclear comps, is there going to be a unstoppable strat somewhere down the line, and is there a player that actually reads patch notes before an update?