If you think that's attaching too much importance to minor stuff (small potatoes, indeed), I am also reminded of my daughter telling about her summer on staff at Philmont, where everybody on staff -- nay, everybody in the backcountry -- had an opinion about how bacon should be cooked. The partisans of Crispy vs. Chewy made Packers vs. Cowboys or Republicans vs. Democrats look apathetic in their loyalties.
Ice or No Ice. Mustard or mayo. Ford or Chevy. Which way the toilet paper unrolls. People have strong opinions about many things which turn out to be of no particular importance. Yet, on matters of faith and morals, they will shrug and say, What does it matter? Isn't it all the same?
I'm not saying that I attach a lot of importance to the superficial differences between religious folk. Robes vs. suits, hymns vs. choruses, even Protestant vs. Catholic, don't stir me much. But the old question, What think ye of Christ? matters enormously. Who is your God? In what do you hope? And what are you willing to do -- or do without -- in order to serve that God? These are not indifferent matters.
The task of the Church is to help people identify what really matters, especially in comparison to all the stuff that really doesn't. The preaching of the Gospel is intended to bring people face to face with the claims of Jesus Christ, in order that they might surrender their lives to him and follow him, no matter the cost, until the day they meet him face to face in eternity.