For the first example, with the ternary operator, I think the original has an advantage that it does not mention `Armed` twice, unlike the improved version.
The presenter mentions that there are a few extra characters, I know, but my issue is not extra characters, but duplication.
When we talk about duplication we are usually talking about doing some work twice or defining something twice. Using a name twice is not the type of duplication we try to avoid.
It's a rather large page with tons of JS, but whose only apparent purpose is to embed YouTube video 8SUkrR7ZfTA which a sibling comment here has already linked.