Never mind. Hearing nothing further from you all, and not getting an answer through the Kansas chat feature with a live agent because they didn't understand the question, today I called in and waited and did get a live agent on the phone who did understand the question, and confirmed that yes, they have seen this before, unrelated deductions on schedule S part A can in fact wipe out part B line 19 Kansas income completely to where you must file as non-resident, but owe $0. So TurboTax did get it right, whew.
