1) The man was seen by everyone to be groping the woman's
private parts. His intention was CLEAR.
2) The woman was dragged into a bathroom (?) for a full thirty
minutes.
3) During the 30 minutes, the woman was SCREAMING.
4) The man wasn't there to threaten them anymore.
All the above four points just blow your post all apart. The
cellphone reason is quite ridiculous btw.
You are wrong on the judgement part too. You are basically
comparing a BEFORE and AFTER scenario in this case. Let me
explain.
A hypothesis scenario such as this case was put to me, and I
replied: No, I won't help.
To judge me at that point, is a true pre-judgement.
However, if I really did nothing when something like that happens,
then it is not a pre-judgement at all. Because what I did, or
rather, what I did not do, was really really, really bad. Take note
that no matter what reasonings you have, to do nothing in such
cases, is BAD. There is no excuse.
Fine if you are intimidated by the man's glare and threat. But
there's point number 2 to 4! The guy can't see you, can't threaten
you... what's there to be scared of anymore? If you are the only
one who dared to call the cops while the others are keeping quiet,
most likely those others will not give your identity away to the
rapist. They did not stop him or go forward as witnesses afterall,
so why would they stop you or tell the rapist you are the one who
reported him?
Your post sounds very much like you are sticking up to those people
who ignored what happened and that is very hard for me to
accept.