I collect mainly Japanese, and so far I have to say the cards I pulled are pretty much in mint condition.
But ! I used to collect French and I stopped the day I opened a double crisis booster pack. The cards were so badly scratched, it seemed impossible to me to be just a production defect. Like someone used sand paper on the card.
Cards in this particular set were really in bad condition. In other sets, it was a lot better, but still. It's very difficult to find good FAs because the cutting is so bad, but all rarities suffer from this. Some sets, I wonder if there even was a print with a good centring (all of my BC cards have this problem). It's not that common to get a card with scratches though.
Since French cards are made in the US, I expect the US cards (and all European cards for that matter) to have similar flaws.
About promos, they're so badly packaged... most are already bent or show very visible dents.
I often look at PCA graded cards in France, and it seems extremely difficult to pull a 10+ FA (even just a 9.5), while some fresh from the pack go as low as 6 or 7 ! The sets with the most 10+ are apparently Aquapolis and Expedition... yeah that's rather old. Everyone agrees that quality has been decreasing for a while now.