I have not used that fs2020 addon, but I have Orbx superb addon for x-plane. I must say that I fly low and close to landmarks, atleast when flying with helicopters (they comes to fs2020 later). I do not know how those better graphics will shown with reverb G2, Orbx x-plane with reverb G1 I can notice those errors easily in London. Personally I would be satisfied those lower quality landmarks if they would not replace original better landmarks.
You must remember that Orbx have been best scenery maker and so we wait that they lives with their reputation.