Hmm... I think the premise that training in a 100% inpatient setting, dealing with sick, unstable patients would somehow magically make you competent in outpatient medicine is an oversimplification that's flawed and ignorant (in my humble opinion). I've heard this argument from residents at unopposed programs with great inpatient experience, who's outpatient clinics are a total mess. There are certain pathologies that you see in the inpatient setting and certain pathologies you see in the outpatient setting; and likewise, there are certain cases that should be managed inpatient, while others outpatient. The difference between family medicine and internal medicine by design (i.e. by RRC) is that family medicine has more outpatient experience and continuity than internal medicine residencies. That's by design.
That said, from a medical care standpoint, it's important to be skilled at BOTH inpatient and outpatient work because it makes you just that much more effective at managing a patient. Having those skills help you make better decisions when you're in the hospital and when you're in the outpatient setting.
What you should look for, in my humble opinion, is a BALANCED residency program, one that gives equal emphasis for both hospital and critical care work as well as outpatient and resource-limited settings. I feel like some university programs have given up on themselves when it comes to inpatient work. These programs don't teach residents how to manage a hospitalized patient without all the luxury and support of the resources around them and their program tries so hard to protect the residents that they end up handicapping them. I also feel that some unopposed community programs are so inpatient-heavy that residents graduate so narrowly trained and incapable of working in the setting where most family doctors work (the outpatient setting). I predict that over the next several years, the hospital will continue to be viewed as an expensive locale for care and that more and more patients will be forced to be taken care of in the outpatient basis. This means that more and more sick patients will need to be managed in the outpatient setting, where they used to be managed in the inpatient setting and it's our job to figure out who truly needs to be in the hospital, and who we can handle in the clinic. This is the stage that's set with bundled payments and ACO's.
There are many reasons why some unopposed programs are over-inpatient-heavy. One of those reasons is money. Government pays the hospital system for the amount of time residents physically spend in the hospital. Programs are required to report this number so that hospitals get paid.
From your standpoint, I encourage you to find a program that's balanced. Not too outpatient heavy, not too inpatient heavy; but busy enough in both where if you wanted to develop a particular interest/competency that it has room for you to do so. It's probably easier to find a program that's outpatient-strong in family medicine. I'm a fan of unopposed programs in family medicine but I caution you when you're looking at programs to pick what's right for you. For me, I think it's important to be balanced: strong in both inpatient and outpatient medicine.