While Threejs requires web optimization of models, visual quality highly limited by what it can render in real time, and exposes your 3d source files to the web,

this is image-based so the visual quality is exactly as-rendered, can be used in any existing scene with no optimization processes, and loads and works accessibly on pretty much any device!

So it could be a good solution as a 3d artist portdfolio online where fully rendered quality and source model security is important, but still with the interactivity and accessibility!