A poster editor where you can restyle a single word inside a paragraph — useful or pointless?

Building a minimal poster/flyer editor for designers. The one thing it does that Canva doesn't: style text one word at a time — give a single word its own font, color and size without breaking your text into separate boxes. Rest is kept simple: shapes with gradients/shadows, layers, multi-page canvas, export to PNG/JPG/PDF/SVG. Editing is free; you'd only pay credits for AI features (first one = background removal). Three quick questions: Is per-word text styling an actual pain for you, or already solve