Yes, it's a bias. I'm not saying it's a bad bias per say but
adherence to the chart of logical fallacies is not a requirement
for an intellectual discussion per se, but it is a subset of the
body of what encompasses intellectualism;*
For example, sometimes it is not possible to contain all of the
necessary information in a question or statement. There may be
missing pieces. It may require some imagination or "What If?"
ability, or it may require what they like to call "lateral
thinking".
In other words, it's your preferred methodology but it is not
the only methodology in ascertaining truth-value. Also,
sometimes an intellectual discussion is not about ascertaining
truth-value at all.*