I also think in the sense of how a church in 1500 was not a relic of the past the way we view a church from 1500 today. I would say a church from 1500 was much closer to what the churches in this article would have been in 1500.
Of course, there is a real issue that while I find these amazingly beautiful I would never go to one because I am not the least bit Christian or religious.
I've generally found the Brutalist buildings in Texas rather ugly on the exterior at least, but did find a sense of comfort in occupying them; perhaps there's something cave-like and solid about their atmosphere. I did enjoy visiting the Water Gardens; I think it's a good expression of the style.
However, many of the churches pictured here are on another level. Something about the austere concrete juxtaposed to the wooden pews (and speaking as someone raised Catholic, it's hard to imagine a pew brutal enough to satisfy god) works quite well for me. I'm really impressed by some of these.