NVKs position basically comes down to a belief that the only way to safely use an open source, distributed project is with his commercial proprietary product.

To me that's an intellectual dead end and if it were true is massive failure for Bitcoin.

Importantly, but anecdotally, I've heard many more stories of users getting rekt using commercial hardware wallers than with seedsigner. Coldcards old dice roll UX caused a whole bunch of noobs to lose funds. But he would rather talk about esoteric nation state level attacks.