Maybe it's just a matter of opinion and interpretation Paul, that an item needs to be cut to be called crystal, I don't know, but it's interesting to talk about.
A little while ago I was watching some videos about glass blowing on youtube (btw, I can really recommend it, it's amazing to see artists at work and there's so much to see!) and I came across some videos of Daum, VSL etc, and they were blowing these clear freeform pieces from the 60/70's, I'm sure you've seen them before, and they were still talking about crystal because of the composition and 'recipe', if I can call it like that.
Re the acid, VSL indeed used acid for it's cameo and acid cut items, but cut crystal, cut to clear or not, was always produced traditionally before.
I can't say how long they've been using this new method now, as everything was kept quiet for so long. From what I understand, is that blanks are now produced in eastern Europe and shipped to Belgium. At VSL just one oven is in working order, so productivity on the spot is quite low.
I don't know if anybody of the general public would notice the difference in techniques though, and I'm not saying that because 'I think i'm so clever and I know it all' ... over here VSL still has that image of being one of the best, like they were a 100 years ago, they're still considered as a jewel in the crown of Belgium's cultural heritage and there's still this national pride. Its market, especially for older pieces, is stronger than ever before.
There's still this respect from the general public for owning a piece of VSL, as, like in the old days, it still says something about your status and prosperity. Funny actually, now I think about it, that has never changed. I wonder if they'll be able to rely on that in the future, as they're opening a shop in Dubai ... why in Dubai

I don't know, as it's mainly a pass-through city IMO, the city has reached it's financial limits for building developments and holidaymakers are not coming back with a piece of VSL as a souvenir.
But personally, I wouldn't pay the prices for the pieces that I've seen in the showroom, a couple of weeks ago.