Good writing requires proper grammar. The fact that all the popular works follow standard grammar simply means that publishers and editors won't distribute writing that doesn't conform to the grammar rules they've learned. Then, we add defense . The rules of Latin do not automatically apply to English. Although the historical reasons for adopting the rule may have been illogical, in the real world, many readers do in fact apply this particular rule to English.
Good writing requires proper grammar.
The fact that all the popular works follow standard grammar simply means that professors and publishers penalize all writing that doesn't conform to the grammar rules they've learned. The Toulmin model will help the author modify the original claim in order to handle special cases or issues raised by the analysis.