... no. This is bad. It's a fix intended to disrupt mercenary alliances, which it might, but it's going to do nothing about mercenaries. You'll just see four times as many bots pulling mobs to support the same number of customers, if they don't just disregard the penalty and go longer instead. It's the solution you get from someone who is only half listening to your concern, catches one word, and says "ah, yes yes, alliances, harumph. We'll see those are dealt with right away, quite right."
No, because it will become non-profitable to run that many bots.

RMT only want to make money, if this is no longer profitable they will find other ways to make it.