Well, yes, I'm sure that's correct. The person who said that is someone whose learning and faith I respect highly.
But then, I think Catholicism is extreme, when you strip it of an imposed nuance, and look at in it's stark contrast to the world around us. At times, it seems extreme compared to the culture of the Church itself, in the developed nations.
Let me put it this way: every diocese is supposed to have an exorcist. There are less than a dozen in the US.
That's extreme, in a bad way.
Hell is real. That's extreme too.
If you are not extreme about your religion--you are lukewarm. And Revelations tells us about the lukewarm.
And that's extreme.
Of course, I may be wrong. I'm not all that well educated, or catechized.