For me as a hobbyist, this makes sense that it would be extremely useful to composers and adds a lot of value, but it's something I'll personally never need. However, the potential universality of the platform is still the main selling point to me, but it depends on the extent to which it will be utilized, both by Spitfire and by the user community.
If Spitfire release demos, tutorials, etc on this platform, then I can load it up, and boom, I have exactly what they have on their screen - that's enormously valuable. They have mentioned several times that this is their intention, and what gives me confidence that they will follow through on this sort of sharing and community engagement? 1. LABS. 2 PianoBook. 3. BBC: education/entertainment is their stated purpose, so the collaboration with Spitfire, who have followed a similar ethos, is really exciting. Christian - I wonder if you can, either here or in a future vlog, give us a little more detail of your plans in this regard?
So the other aspect is the community: rather than releasing member compositions as audio files, people could, in theory at least, share their Logic BBSCO files. Perhaps not your latest and greatest, but snippets, illustrating a particular feature/progression/articulation. This would really stimulate the community if it happens, but I'm much less confident of this, based on previous discussions here of sharing such information.
I'm not sure this will happen on VI-C; ok, realistically, it will never happen here! A composers' forum, with professional musicians, is probably not the place, because the concern of plagiarism will be too great. But look at PianoBook, where people are sharing their own frickin' pianos! Painstakingly sampled, and freely shared, for the enjoyment of the community. I could imagine something similar, in which the community share musical ideas as BBCSO files, and other hobbyist composers, adapt them and re-share, and something interesting happens as the result of such collaboration, that wouldn't have happened with a single composer. Perhaps think of it along the lines of Eric Whitacre's online choir!
My other hope is YouTube: people like Ashton Gleckman have generously shared midi/Cubase/Logic files for their mockups; might this platform encourage Ashton and others to use BBCSO and share their files for educational purposes? I guess we'll see...