Gamer Mentality: If we can't clear it in one try there's something wrong with the game and/or the people I'm playing with.

True, there are the times when other people sink the progress. But most of those times it's because said person/s might not understand the mechanics and need practice. People do learn new stuff throu practice, and some have had more practice than others.
When I cleared SoF we wiped 1 or 2 times (with the clearing party that is), but after each wipe we took a few minutes to talk about the strategy and who would do what etc etc. Failing is the best way to learn something new.