its just luck what kind of random team you get. a 1v1 top 10 player is better than a top 10 4v4 player guaranteed.
Your original quote:
In all honesty, a 4v4 rank is nothing, really nothing to brag about. Grab a team of 4 semi decent players and stomp 85% of the games because most of the 4v4 players are low skilled players.
You don't get a rank in 4v4 random by "grabbing a team of a 4 semi-decent players" because it's entirely random who you are with and against
How you manage that governs your skill level at random 4v4 because some people are better at it than others and over time the vagaries of the matchmaking will even out.
So anyone who wants to claim, as people in this thread have, that "4v4 is no skill mode" is full of pudding.
4v4 AT is a different kettle of fish, and a team of competent players can break the top 200 without too much problem because, especially as Axis, the balance is so much in your favour for AT v Randoms that it's mostly a matter of playing 20 or so games with the same people.
That said, it's still a case of who is better at it than others.