Nate
industry standard system originally proposed by Sun Microsystems and Apple Computers, and used by millions of machines in the US alone.
In other words, it's not proprietory.
Your argument boils down to something isn't open if it does not follow
an IEEE, W3C or OMG managed standard? Come on! But lets move on from
that - we know that it isn't a proper standard. So your second part is that it is
standard because its used by millions of devices.
So..... ..... is Windows more "Open" than AROS?
So, given that it is not a proper standard, its not more open or less than U-Boot (GPL) how
about you just live with it. U-Boot is not proprietary.