So what? Segwit would already be active by then.
And the whole world would have witnessed that the protocol can be changed by the economic majority, without miner-consensus.
How is that a good thing? That's exactly what we have with government fiat.
Have you seen the message in Bitcoin's genesis block?
The Times 03/Jan/2009 Chancellor on brink of second bailout for banks
Bitcoin was supposed to save us from the rule of the economic majority.
Like it or not, miner-consensus is the definition of Bitcoin. Read the whitepaper (it's in my sig for your convenience).