Agree 100%. Yes, Galio's balancing is really off. Yes, there have been similarly large and seemingly obvious balance issues in the past. For sure, the balance team does likely deserve some criticism for how some issues aren't anticipated well enough, or allowed to persist for too long. None of this, however, provides any justification for calling any member of Riot to be fired. Everyone makes mistakes, and seeing how League is a) an incredibly complex game that is b) on the verge of one of the biggest balance upsets in its history, yet is c) still largely functional, I'd say the balance team is doing a pretty damn good job. It is always easier to criticize than it is to do anything, and while it may be understandable for players to be frustrated at the game's current state of affairs, instinctively lashing out at other people is not the way to bring about anything constructive.
Speaking of constructive, as several other players have mentioned, posts calling for Rioters to be fired are exactly the kind of shit that pushes them away from the Boards. When I was on the Warden team, I met a member of Riot who took it upon herself to personally convince Rioters to post on the Boards, simply because of how much they did not feel like going on here. When I asked her what the major problem was, she told me it was the toxic atmosphere and the baseless personal attacks against the developers. Calls to fire Rioters and similar bullshit are a prime reason why Gameplay is still not the healthy communication space between players and Riot that we've hoped for, and the users making those posts are simply making things worse for themselves and for others.
While at this point it's already too late, I really think the "balance team needs to be changed" thread needs to be removed, as with any other thread like it. As long as it stays up, it conveys the message to everyone that it's okay to personally attack members of Riot, and thereby drive them away from Gameplay, and will continue to spawn more terrible threads like it. No matter how good the actual content in the OP is, that is something that can be posted in a thread with a less inflammatory title.