Modern is associated with your definition and has a positive connotation. However, it really just means it's new. That doesn't necessarily mean the things you listed. But it does mean that it's probably under active development, the creator has it fresh in their mind, and you can probably contact them.
The word Modern absolutely does not mean new, recent, or contemporary in the context of design (or really in reference to any visual presentation). The design of Walkman was innovative and new when it came out, but at no point in time did it qualify as Modern.
Modernism, as applied to the design of tools and other useful objects, was codified by Dieter Rams half a century ago. The recent resurgence of Modernism as applied to computer software and hardware is not the result of inevitable progress. It’s the result of Steve Jobs deliberately choosing Modernism in the early 90s (although this wasn’t apparent in products until his return).
