Why this matters
Content rarely explains placement by itself, but it can push a borderline sender into spam or reveal why one template performs worse than another.
Read content warnings as debugging clues, not as a list of banned words.
How to fix it
Make the sender identity clear, reduce exaggerated claims, simplify HTML, use a normal text-to-image balance, and remove unnecessary urgency.
Change one meaningful thing at a time, then rerun a comparable test so the result remains explainable.