I completely agree. LLMs are incredibly useful for improving the flow and structure of an argument, not just for non-native speakers, but even for native English speakers.
Making texts more accessible through clear language and well-structured arguments is a valuable service to the reader, and I applaud anyone who leverages LLMs to achieve that. I do the same myself.
Yes it's a valuable service but we should also be aware that it puts more and more weight on written language and less weight on spoken language. Being able to write clearly is one thing, but being able to converse verbally with another individual is another entirely, and both have value.
With students, historically we have always assumed that written communication was the more challenging skill and our tests were arranged thusly. But we're in a new place now where the inability to verbally converse is a real hurdle to overcome. Maybe we should rethink how we teach and test.
Making texts more accessible through clear language and well-structured arguments is a valuable service to the reader, and I applaud anyone who leverages LLMs to achieve that. I do the same myself.