I find I agree with Crepitus on his points about the actual multiboxing.
The 'issue' I think you are trying to solve, is one group turning up with twice as many bots as another, even though the same number of flesh-things are behind the controls. That is a problem of bot numbers and has nothing to do with the numbers of humans involved.
The number of different fits you can make by using a support bot for extra utility and options brings a lot of gameplay and complexity and I don't see why you would want to remove it, other than as a crutch to help balance the game for low population combat, something it is plainly not geared towards.