Nice interview. On the subject of non of those devices ever been hacked, according to this article (below) the author successfully hacked his Trezor when he forgot his pin and lost his seed phrase.

https://www.wired.com/story/i-forgot-my-pin-an-epic-tale-of-losing-dollar30000-in-bitcoin/

The firmware has been updated to fix this exploit since the article, but it's worth knowing it has been hacked in the past.