Don't think they're including shuttlecraft. It's a bit hard to read but I can't see the Cerritos' Death Valley scanning through that area of the alphabet. I do note that Discovery is there in both original and -A format, which might be contentious since the ship is its own refit.
They're vessels but I don't think they'd qualify as ships.
If I ask you to name every ship in the Navy I do not want RHIBs, dinghys, tenders, lifeboats or rafts included, but if I ask for every vessel, then if the Navy owns a kayak I want it listed.
If they don't have a place to sleep, multi-day trips they talk about using shuttlecraft for don't make sense. Clearly there's a fold-down bunk or something. I mean there doesn't look like there's any place for a toilet either, but there's no way they can be in a shuttlecraft for hours or days and not need one. They gave Scotty a shuttle and he went off to explore the universe. Does that make sense if there's nowhere to sleep?