One thing that was always hyped as a feature of VI is how you can use it in any venue. It doesn't have "baked in" reverb. This is not just hype, it is an important feature. But now that has been forgotten apparently and now everyone wants "one-size-fits-all" reverb that is there from the beginning and can't be removed. Well, it doesn't fit me.
The use of MIR along with VI allows you to place instruments into very different reverb/acoustic settings that you can't get normally. Or you can use your own setup - like Lexicon hardware reverb, analog spring reverb - you name it! This is huge for sample libraries and only the Silent Stage recorded VI instruments allow this.
That is why I think VSL should absolutely continue recording both VI and Synchron, even if it is difficult commercially. VI is distinguished from other sample libraries by this - the Silent Stage approach that is PURE MUSIC PERFORMANCE undiluted by any acoustic environment.