Conducting instrument approaches in uncontrolled airspace sounds dodgy to me. It sounds like an accident waiting to happen once sufficient traffic levels are met.
More than likely a go-around is needed to avoid an airprox, wasting both time and fuel.
Surely the best solution is to ensure AVGAS duty+VAT gets channeled back into aviation, and hence fund the controllers needed to co-ordinate traffic to improve airspace access and safety, as well as costs incurred by the airport for landings, etc.
People are wondering why AVGAS prices are approaching £2 per litre and still have issues with access to airports and airspace!