The response provided contradicts itself. The writer used the term "concur" which literally means "I agree" but, in the same sentence indicates
I will challenge this school of thought.
A statement that directly contradicts the agreement opinion provided earlier. Therefore, the examiner will be confused by this presentation. It has 2 conflicting opinions, leaving the writer without a clear opinion which is required for an accurate task response and a proper GRA score. Both of which will receive failing preliminary scores based on lack of response clarity.
Further reading of the essay leaves the examiner additionally confused. Rather than a single opinion discussion, the writer used a comparison discussion presentation. The discussion format is therefore incorrect. As such, the related scoring sections will not get a passing mark either. Needless to say, even without considering the LR level of the writer, it is safe to say that the essay will not receive a passing score. It is just impossible since the major scoring sections will receive a failing mark individually and collectively.