field goal or try

[Theisey]

Furthermore, an R in a 4-man game doesn't have the proper view to be able to call it good/no good if a curving kick appears to pass over the upright. So the chances of it being called good are if you will, pretty good.
Depth perception issues are going to prevent that, especially at night.

By the book, as asked in the original question the TRY or FG is no good and should be called as such if officials are positioned under the uprights.