Actually, based on the info posted I don't think anyone would get past 221g until this is sorted out. I expect lawsuits to start including class action ones.
For Bosnia don't know what's the background but could be IR5s as most advanced age adults don't speak English, have no or minimal prospects of work (satisfying 40 quarters of work), Medicare issue and potential use of medicaid. Not sure about other potential welfare use. Younger folks normally don't come near welfare upon move to the US - I certainly never have since stepping foot in the US as an immigrant.
Just guessing here as I've been long done with USCIS - what could work in your favor: your fiance has current job that they could transfer skills to in the US market, speaks good English, you have medical insurance you can add to, I imagine that would be fine.