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As long as the first-grader reading at a 6th-grade level has a G/T class available, the article isn't talking about our kids.
Agreed.

However the article describes
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make sure all students are reading text that is at their grade level. In other words, less leveled instruction.
The article specifies reading text "at their grade level", not "at their ability level", not AT OR ABOVE grade level. No G/T class availability is described.

Based on this evidence from the text (both what the article does say, and what the article does not say, hint at, or imply) the article could be talking about our kids in the classroom.