I'm sorry I'm unable to view br.muadhs chosen post quoted in your post...if it's the one mentioning the frozen and non-frozen products...I would leave it out. We don't know exactly how many jus-rol products are on the market, and which ones are with or without alcohol.
It's sufficient to warn ppl that there's a mixture of both in the market, mainly to create awareness that this would stand for any suitable for vegetarians product. I once bought a bottle of marinade because it had suitable for vegetarians on it, when I bought it home i found that it had red wine in the ingredients...because of this mistake I'd become more aware of alcohol in suitable for veg products...which is the main point I feel that should be emphasized.