A group of city firefighters will skip a ceremony for their colleagues this week, claiming that it’s hypocritical for the mayor to want to congratulate them after expressing such critical views of their union. In an email, Battalion Chief Tucker Wiley wrote that the 16 members of the D platoon have decided not to attend the fire department’s annual awards ceremony on Thursday because of the stance that Mayor Joseph M. Butler Jr. has taken during the ongoing contract dispute with the firefighters’ union. The battalion chief also mentioned a strongly worded opinion column that Mayor Butler wrote last week regarding the contract dispute, claiming it contained “inaccuracies and mistruths.”