You have more faith (or something) in people than I do. I think the same people who assume (with some justification) that someone who has been reported as a "pedophile 'priest" has acted on those impulses will link those two words together in exactly the same way when confronted with "priest who is a pedophile".
The assumption will be that they wouldn't be in the news if they hadn't acted on those impulses.
Just out of curiosity, do you know of any instances where a priest has been reported to be a pedophile who hasn't been alleged to have molested children (or young people)?
Even if no children had been involved in the pornography?
First part of the question, theoretically possible, but no, which is also why I see little problem in using the common term for them. I suppose some might confess to such thoughts. However if they are of good intent, then they should not put themselves in temptation. If they require a religious life, then a monastic lifestyle would be better. The mere act of being a paedophile and putting one in a position of trust with access to children suggests acting in bad faith.
As to your second question, I'll answer a slightly different one at first.
It is in the interest of society that there is no defence that one is merely looking at "realistically-simulated footage" of abuse as opposed to real footage of abuse.
I haven't looked it up, and intend not to because I would be too distressed by the descriptions, but my
impression from the news is that most is genuine footage of abuse.
Sorry for the rather lame reply.