I think prevent totems from being summoned outside of sight range. The comments on the bug report say that the issue with the summoner not being pulled into combat was the vision check between the summoner and totem/incarnate failing, the programmer checked both ways the vision was being calculated (for the summon spell, and then when combat was triggered) but they used the same underlying function, and then that the issue was that it was possible to summon totems outside the sight range. Either the summoning range needed to be fixed or totems given a bonus sight range to compensate (which could be just recalculating it however the summon range was determined, and taking the higher value), so I'm assuming the former.
The high ground range bonus and Far Out Man are fine as long as they are taken into account when checking if the character can see an ally in combat.