Per FAA rules this is a wrong conclusion.
There is nothing in the FAA regs that prohibits IFR flying (or landing) in uncontrolled airspace. It may be stupid, reckless behaviour (depending on situation) but definitely not illegal. How JAA looks at it I can't say.
Well, there are scheduled flights taking off from and landing on uncontrolled airports in Europe...
Another tip-off that (A) is a wrong choice is that they are using RVR in uncontrolled airspace, such combination makes no sense at all.
Why on earth not? Uncontrolled airports can (and sometimes do!) have weather observers. Not to mention AUTOMETAR.
Also, in EASA-land you can convert meteorological visibility to RVR so RVR minima can be applied even if RVR as such is not reported.