Well, like I said, I'm not necessarily against OSC, and in a perfect world, it would be great to have an excellent MIDI, OSC, DMX, and perhaps even other protocol support built into Modul8. However, obviously resources are limited and I think the real question that needs to be addressed here is whether or not OSC is something that should have a high priority for the guys at GarageCube. I suspect that decision is already made, but who knows...
Regarding "quite a few" hardware OSC items, I guess that's a relative term
Honestly, like I said, as good or bad of an idea as OSC may be, at this point, I just don't think you can consider it anything more than a very small niche. My suggestion would be that rather than put more work into OSC, more work be put into DMX. DMX is every bit as limited as MIDI (if not more so), but there again, it's ubiquitous when it comes to lighting. DMX also has about the same level of support in Modul8 as OSC does. Personally, it seems to me if we're talking about a protocol to integrate with other programs/systems/etc. (and that kind of seems to be general direction of this topic), many more people would be in a position to leverage DMX interoperability.