Why such a negative view on non-ED development? Of course with ED you know there's a certain standard and I wouldn't be interested in something not accurately modelled either but I think 3rd party developers could definitely make DCS-quality flyables as long as the tools allow everything to be edited properly.
Despite being a fan of hardcore realism, I think an aircraft with partly classified data could still be acceptable -if- modelled very well and clearly stated what data used could not be 100% confirmed. That way we (those that want it) could have modern fighters/helis in DCS (that ED wouldn't even look at) as accurately modelled as possible, except for some data, but we would know what may not be correct as we fly around in it enjoying ourselves. :D