I mean they're random in that when you enter a teleporter (and to a lesser extent mancannons), it's not always clear what's on the other side depending on the map, as you said. This can lead to abuse in general matchmaking. The idea of a player getting a significant advantage in a BR duel just because they entered a teleporter at the right time doesn't seem fair. This is anecdotal, but in most games on Scythe that I've played, I've seen one side of the teleporter straight up camped by a player for the duration of the match. It's an interesting idea in that it can alter controlling the map in different ways, but when it causes 1 or more players to turtle around it, it doesn't work well in my opinion.
As for mancannons, I just don't see the point of them outside of BTB. It's largely just preference, but isn't sprint or trickjumping enough for traversal? They're handy for getting players into the action (Valhalla for instance), but I don't get the point of their placement on maps like Adrift.
