Satoshi was being realistic about its own design unlike all of you small blockists who didn't had the genius to invent bitcoin. He obviously wasn't locked up in a prison of fear.
The conditions under which Satoshi himself established a block size limit, remain today.
No. The recent spam attacks prove this wrong. The limit is useless.
No. The recent spam attacks prove the limit is fine. Fees increased. No catastrophe happened because of touching the limit. My nodes worked just fine throughout.
Also, for those solutions that Bitcoin is not ready to solve at the moment, there is a clear way other than forking or using an altcoin: working off-chain
http://www.coindesk.com/remittance-firm-toast-pivots-from-bitcoin-raises-850000/