It would be great if you could hear them talk before they're hired,- e.g. read their own bio - especially as they look to be given a more permanent role with their proposed rescuing at ship destruction.
I'd go a step further. Why can't I use holo me, an asset already in the game to just edit them, including their voice pack? the assets are already there, it would probably take a single dude less than 1 day to just add a button to open them up and edit them.
I also want them on my ship, and a few more voice lines couldn't hurt either. Really adds to the whole experience of flying a large ship IMO. the silence of not having one there seems pretty dumb considering my corvettes are what... almost 200m long?
as far as not being spreadsheet governed... not necissarily, they'd probably just charge you for it. like outfits, ship kits and paintjobs.
I'm gunna need to see where fdev said that the are finally considering making them rescuable though, people have been beggin for that for so long they gave up. used to be threads all the time about that in '16 or '17.