Yes. It's always a matter for preference what a night photograph
should look like. There's no right answer. You can get very nice
photographs using floodlights and the like - they make for stunning
images but are not a reflection of reality. So you have to be the
happy the photograph is what YOU want and the reality is that it can
be quite dark.
It's not like flash (except possibly a much bigger flash) as flash
tends to deaden everything and wash out the foreground leaving the
background in darkness.
I was very surprised how much I could lighten the photograph without
it complaining! There's usually a downside when you lighten it that
much but it wasn't very apparent.
The good thing about discussing photographs is, even though there are
differences of opinion, everybody gets something out of it and that
makes for better photographs in the future. It's not important who
takes them.
Regards,
David Beilby