I would say that it depends who is making the statement and what position they are in to know about how "Everyone..." was feeling.

If the person offering that "Everyone wanted to..." can speak for everyone else because they have already gained knowledge of what everyone else wanted, then it is might possibly be a fact. Of course then you could question the validity of that person's knowledge. Did they gain it by observing everyone else's demeanour (so they might not be totally sure)? Or did everyone else volunteer this information?

Alternatively, it could be pure conjecture. The person speaking felt that the new ride looked exciting. They wanted to persuade someone to go on it. Therefore saying "Everyone wanted to..." might be a useful way to persuade the other person.

I should state that I tend to be sceptical about things that look like "facts" but I'm ok with that. I don't mind people having subjective opinions either. I just like to acknowledge them as such.