Five Words That Could Save the Church
Yeah, because the cause of truth is always helped by saying "but I could be wrong" at the end.
Thanks for this news. I was not aware the church needed saving.
Jesus is Lord .... “…but I might be wrong.”
"We should buy the red carpet …but I might be wrong."
No absolutes. No arguments. No rights. No wrongs.
The kernel of truth in it is that, as Jim pointed out, there are lots of places where that attitude would really be helpful.
Maybe 1Cor.4:6 is of some help?
I can't speak for everyone (see what I did there?), but I'm sure there are a LOT of people in our IFB churches (to speak nothing of sinners everywhere) who would do well to heed this advice.
I try to take what I read at face value. I think the author handled it just fine when he wrote
If we can't be certain, let's be willing to acknowledge it and seek fellowship in spite of it. Instead, we tend to default towards staunchly standing our ground even over some relatively tiny issues.
Aside from the Great Non-negotiables of the faith, "but I could be wrong" is a more interesting attitude, anyway. I mean, that sort of curiosity about what others have to say makes for a lot of good reading and conversation. It's got to be really boring to think you have everything already figured out.
I think the author mostly clarified his statement-
It's a call for graciousness in public discourse, not an abdication of strongly held beliefs.
And I don't think I'm wrong about that! 
Often times we who carry the banner for truth and boldly proclaim the "truth" begin to think that every opinion we may have is the "truth". So often today I see the bitter discourse between those who profess to know the truth and yet have no discernible meekness and reverence in their speech. This attitude is no respecter of position held. A gracious tongue that speaks the truth in love and humility will bring honor to our Lord and Savior, Jesus Christ.