I dont think anyone appreciates fullshare abuse. With fullshare abuse I mean going for "extremely risky" ACU plays or even just ctrl k'ing them into enemy armies and not losing much of value because
- the ACU did tons of damage and/or the ACU explosion eliminated enemy threats
- its easy for one player to manage two bases.
Now this might be a hot take, but it's why I believe PoR is a bad map for 4v4 fullshare. The meta is to abuse fullshare to its maximum potential through comdrops, TML acus, or even just ctrl k'ing the acu into enemy navy (each preferably done with one of the acus on the island with two spawns). It easily has the potential to do game-winning amounts of damage while not setting your team back at all if you die. It might even help because it concentrates eco and lack of APM is a complete non-issue.
It seems every time I play this map my opponents know to go for comdrops/TML acus and whether I kill their acu or not, it sets us back a ton while not affecting the enemy team at all. I recall setons not being added to the 4v4 TMM pool because some players know how to play it while others don't, and that this would cause for extremely imbalanced games. From my experience, the same seems to be true for PoR.
Not convinced? See this.
https://imgur.com/a/k4fgTus