Thirdly... So what if there are more hard forks later?  The current proposal from Gavin also guarantees that there will be more hard forks.  The proposal is a guess at what might be needed, it does not measure the block chain in any way to determine how to set the right block size.  It is a good guess, but it is just a guess, same as the 1MB limit was.  We don't finish with hard forks by going with the current proposal either.  So none of your argument here makes any sense at all.