I'm not sure what you are talking about with this, but I thought Go had great cross platform support. Can you point me to a resource documenting your "Less than excellent track record"?
The worst horror story is that Go encodes the syscall table on most platforms, which can cause problems on platforms like Solaris, where the syscall table isn't guaranteed to remain the same over time. However, that code's been written, so Go may be better off than I thought.
In general, however, the more implementations, the better. So I maintain that we should build more implementations of the IPFS and dat protocols (they're apparently fairly similar). Because if we're building the next web, it cannot be linked to a single platform, especially if that platform is node, the only platform that all these new protocols seem to have bindings for.
Why? Because a lot of people don't like Node...