I think the issue is more that the Lincoln seems to have a narrow customer base (even if the type has a very interesting history and the model itself is great) and that current sales don't justify more work on her. I understand that making these lesser known aircraft are a fine balance of input in resources and time and what they get back, and I think we as customers just have to live with that if we want to see these models. A bit sad as it is very close to the perfect Avro Lincoln representation. We can hope, but I'll not hold my breath.
For me the radar radome issue is not so much about being low poly, I can live with that, but that it has the wrong shape. As far as my research goes it looks like all of the big radome Lincoln had the saddle type radome and not the shape which is on the current model. I might we wrong of course. I believe Virtavia used the warpaint drawings and they have the wrong shape of the radome.
As an end note, I'm very happy that Virtavia continue with the tradition to bring forward some of the forgotten aircraft of the cold war, hopefully more people find these aircraft interesting as well.