I guess one would have to read through his book to see how he handles it.
Listed as 'Amrod &n Amras', said both to have been slain in an assault upon the Havens of Sirion
Of Oropher it says he was slain the Battle of Dagorlad and Thranduil his son became King of the Woodland Realm.
So it appears he doesn't avoid Oropher altogether, and accepts the information in the Silmarillion as published, not other versions of the tale presented in HoMe.