I don't know who is more correct on this debate. The only way to resolve this would be to hear the same people do this same piece with VSL samples. However I tend to agree with Craig Sharmat in that the useage of samples is often the cause of either a good or bad sound. This demo is very short, and it is easier to do something short that sounds good than an entire symphony.
Nevertheless, on this demo the acoustic dynamic range is perfect, the musical dynamics are extremely well done, the writing is nicely contrapuntal (rather than homophonic - the worst way to write for strings) and the timbres of the original recordings seem to come across better in the mix than any other samples I've heard. And obviously if VSL does more string recordings it will be a great thing.
Nevertheless, on this demo the acoustic dynamic range is perfect, the musical dynamics are extremely well done, the writing is nicely contrapuntal (rather than homophonic - the worst way to write for strings) and the timbres of the original recordings seem to come across better in the mix than any other samples I've heard. And obviously if VSL does more string recordings it will be a great thing.