I didn't intend to fully contradict what you said, but to make a stronger case, and address similar remarks by others--you made the best comment along those lines, regardless of your balance and nuance.
What G.K. Chesterton said is that, if you can't make an affirmative case for the tradition's origins and show why the cause no longer applies, you should leave the tradition in place.
In the listed examples, rationalists celebrate this principle with examples such as the bitter cassava preparations of the Tukanoan people, which were very labor- and time-intensive. A much shorter processing would have eliminated the obvious, short-term toxicity of the plant, so someone scientific experiments to determine how much processing was actually necessary would likely end up damaging themselves and their reproductive prospects in ways that wouldn't show up for years or decades.
So there's evidence that the rationalist community actually appreciates tradition more strongly than the average person, and searches harder before discarding it.
What G.K. Chesterton said is that, if you can't make an affirmative case for the tradition's origins and show why the cause no longer applies, you should leave the tradition in place.
In the listed examples, rationalists celebrate this principle with examples such as the bitter cassava preparations of the Tukanoan people, which were very labor- and time-intensive. A much shorter processing would have eliminated the obvious, short-term toxicity of the plant, so someone scientific experiments to determine how much processing was actually necessary would likely end up damaging themselves and their reproductive prospects in ways that wouldn't show up for years or decades.
So there's evidence that the rationalist community actually appreciates tradition more strongly than the average person, and searches harder before discarding it.