1) I wrote those rules quite a few years ago (and to be honest, that particular skill specialization has just never come up in a playtest) so the exact details of why I represented it that way is sort of lost to time. However, I think that I did some basic research on that and found that mariners considered sailboat skills to be more similar to operating a motorboat for some reason. (I'm not a boater of any kind and have no idea where I may have read it, so don't quote me on that.) Or, I could be misremembering that, and maybe I just did it that way to prevent a visually distracting line from snaking around the box on the specialization flowchart for a specialization that almost no one would ever use...
2) Yep, that's definitely supposed to be a reference to Field Medic. This has been noted to be corrected in a future printing.
1) I wrote those rules quite a few years ago (and to be honest, that particular skill specialization has just never come up in a playtest) so the exact details of why I represented it that way is sort of lost to time. However, I think that I did some basic research on that and found that mariners considered sailboat skills to be more similar to operating a motorboat for some reason. (I'm not a boater of any kind and have no idea where I may have read it, so don't quote me on that.) Or, I could be misremembering that, and maybe I just did it that way to prevent a visually distracting line from snaking around the box on the specialization flowchart for a specialization that almost no one would ever use...
2) Yep, that's definitely supposed to be a reference to Field Medic. This has been noted to be corrected in a future printing.