Getting an unfair advantage over other people?
Its not unfair as long as the mode is basically a FFA with random items.
I am curious about what your view is on the harm done to the casual players in regards to the little more fun players can have by eliminating the other people first and only to secure them a win.
First of all, casuals are generally not gonna be massively influenced by that. The element of luck in this game is massive, to the point that most stuff that will ruin the fun is not gonna come form teamers, "trolls" and what not, and its not like you have teamers in parties every second or third game, and even the teamers that I encountered generally had a low impact on the whole game.
It is bad for casuals that some players abuse the lack of anti-teaming rules, but its the same type of inconvenience as someone spawning an ender dragon, a wither, or deciding to kill themselves and grabbing someone along with them.
What I am trying to say is: teaming is bad for casuals, yes, but nowhere near the level of the games design itself. I think casuals are gonna be way more irritated and have their fun ruined way more by a random wither, a random ender dragon, or a guy suddenly running up to them in full armor or randomly throwing snowballs at them or using a fishing rod to throw them off their tower, etc., than they are at a bunch of randoms deciding to be bffs ingame.
Hell, the whole reason I believe teaming is okay in this mode, besides the already mentioned "everyone vs death" thing, is the complete randomness of the mode. As long as ender dragon spawns are possible, teamers are the absolute least of anyones worries and don't influence the fun from the game nearly as much as the games own randomness.
