Yes, I think it it might be pickled.
I think the jury is out on a true causal relationship of pickled veggies with gastric cancer, however (unlike 99% of the hoo-ha people spout about cancer and diet) your folks' fears are not totally without scientific merit: http://www.ncbi.nlm.nih.gov/pubmed/22499775
However, IMHO, there are sure to be quite a number other risk factors at play - genetics, smoking, alcohol, other dietary or infectious agents - and even the study quoted above did not find that the association is significant in Western countries. Still, as long as there is some concern, if I had a family history of gastric cancer I might avoid (or eliminate) pickled veggies, particularly if I was of Chinese or Korean descent.
That said, if I really had a strong family history of gastric cancer AND I was of Chinese or Korean descent, AND I was a FoodTalkCentralian, JUST before eliminating pickeld veggies, I would try that fucking condimnent at 101 - IT IS THAT GOOD!!!!!!