Critic: Linsey has been judged to be a bad songwriter simply because her lyrics typically are disjointed and subjective.
Opposing Idea
Linsey has been judged to be a bad songwriter simply because her lyrics typically are disjointed and subjective.
Conclusion
This judgment [that Linsey is a bad songwriter] is ill founded.
Evidence
The writings of many modern novelists typically are disjointed and subjective, and yet these novelists are widely held to be good writers.
Evaluate
The word "since" in the second sentence helps us see the structure of the argument. The statement that follows "since" is evidence. That evidence supports the conclusion which comes immediately before the word "since."
It's also helpful to notice that this argument follows a common form. It presents an idea in the first sentence. It then pivots to the conclusion, which refutes the idea in that first sentence.
Goal
A correct answer might state, We'll keep an eye open for answers that are worded differently but convey the same meaning.