Because if you stopped using the home in 2023 or earlier, you were supposed to file form 5405 in that year, and close out the credit (repay the remaining balance, depending on the circumstances). You aren't supposed to make a payment now, because you were supposed to reconcile it before.
Since this is the last year of repayment, it may be easier to just say "no" so you can make the last payment. But it is technically incorrect.
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