The benefit of the easier formulas tau might provide. Minus. The confusion of having different generation of students being taught differently.
Is it worth it?
The author tries to dismiss this by saying "it's easy, they'll get it quickly, we don't need to rewrite all textbooks if you can just say 'let tau = 2pi'". But it seems he's rushing in that conclusion. The imagine the confusion between trying to convince students who are used to a whole set of formulas to use new ones will be huge. The confusion caused by different generations trying to communicate seems huge. You might not need to burn old books but you would need to write new ones, which again does sound like a huge endeavor.
I'm not even questioning whether he's right about tau formulas being easier. That seems irrelevant to me. Just the problems you're creating with the confusion seems not worth the small benefits. It just doesn't seem the pros outweigh the cons.
Is it worth it?
The author tries to dismiss this by saying "it's easy, they'll get it quickly, we don't need to rewrite all textbooks if you can just say 'let tau = 2pi'". But it seems he's rushing in that conclusion. The imagine the confusion between trying to convince students who are used to a whole set of formulas to use new ones will be huge. The confusion caused by different generations trying to communicate seems huge. You might not need to burn old books but you would need to write new ones, which again does sound like a huge endeavor.
I'm not even questioning whether he's right about tau formulas being easier. That seems irrelevant to me. Just the problems you're creating with the confusion seems not worth the small benefits. It just doesn't seem the pros outweigh the cons.