If I recall correctly, WG has two different sections that employ the same question stem (‘conclusion follows’) - interpretation and deduction. In deduction, you are constrained by a stricter version of WG’s rules of formal logic and, there is a presumption that it doesn’t matter whether a statement given actually makes sense in real life. The example given here - about Chloe - draws no causal relationship, so it could not be used as a counter-example against the conclusion itself. Therefore, the causal statement in the conclusion is just a rephrasing of the premise, which basically collides two groups of people. You can also think of WG’s deduction as a very simplified version of LSAT’s inferences, but in WG the logic patterns are so simplified that, as this question reveals, intersection and cause/effect are basically the same thing. I hope this helps.