I generally agree with you, and I don't think SanpOS is a particularly good example of modern UI design, product vision, collaboration, or a few other things.
But I can also understand why people get excited about visual changes. From a product perspective, users experience the system as a whole, not as a collection of technical achievements.
And while preserving AROS's Amiga roots and design philosophy is important, I think we also need to recognize that users in 2026 bring expectations shaped by macOS, Omarchy, and other modern environments. Not to mention the community's desire to compete with MorphOS.
Visual design and usability aren't superficial additions to a product. They're part of what makes the underlying engineering valuable to its users.