I don't think the radio is 'broken' personally, I think resource distribution is just unbalanced. Fire is the root of too many conditions, and isn't available enough. I went nearly twenty days ordering food and drink like a pizza before I got a single fire card.
I believe there's plenty of room these days for a chill survival game. The internet is already glutted with 'don't ask for help survivalcore grr', it's tiresome. This is a nice treat that way!
I'd like to request a solar cooker, though, for sunny days. Maybe with a chance component that it's not as effective as starting a whole fire for purifying or cooking. After all, this isn't a hardened survivalist; they won't have all success like some special ops force. At the same time having separate chance components would inject some fun into it. Searching I think should have 100% success, but does fishing need to? For instance.