I don't blame BB for Welkers actions, I blame BB for how he responded to Welkers actions. Look at it this way, would you have a problem if BB cut Welker for those remarks? Would you have a problem if BB held out Brady, even if it was for one series?
As far as missing a series, if it's an equipment issue you don't have a choice, it's necessary, keeping Welker out wasn't necessary.
I disagree with it because it hurts the team. You discipline a player because the team's performance will suffer if you let them do anything, discipline is a means to an end. When you remove one of your best players, therefore harming the teams chances of success, to discipline him because of some stupid comments you've got it backwards.