That is definitely a valid way of using Spine as well. You can just work in the chat and consume the deliverables similar to how you would in other tools.

The canvas helps when you want to trace back why an output wasn't what you expected, or if you're curious to dig deeper.

Even beyond auditability, the canvas also helps agents do better work: they can generate in parallel, explore branches, and pass context to each other in a structured way (especially useful for longer-running tasks).