Unfortunately I think only VSL can improve SyS - and that will require huge amounts of new recordings. Let's face it, it's not gonna happen.
I certainly wouldn't settle for that.
When I am commissioned for a project and the client thinks it needs rework --whatever the reason, we talk about it and I usually get back to said project, according to what was discussed. Sometimes I feel the client is wrong because they don't know much about music. But they pay me, I deliver.
I don't think VSL has ever released a product that raised so many eyebrows. Those who voiced their concerns here and elsewhere spent money, sometimes long before the product was released. Lots of them have already had the chance to use a few other strings libraries, and thus usually provide VSL with informed, knowledgeable feedback. Sadly, what they have been getting in return so far is silence, and in my view an opportunity to raise more eyebrows (Synchronized Chamber Strings).
The competition aside, everyone wants Synchron Strings to be a great product, which at this point I think it is not. Almost all of their other libraries are, and the rest of the Synchron line certainly is. So yes, I hope VSL do consider recording new material that fixes the library's shortcomings, because any other approach will sound like a slap in their customers' faces.
I'm back to work!