I say there is enough consensus because more nodes are running the bip-110 soft fork than during segwit. The game theory is already in motion. Miners will obey the tighter rules or they will risk their entire business over 0.1% fee revenue from spam. You- as a node runner unwilling to upgrade- can sit this one out 👍 Your v25/v28 core node will continue to work fine with the new consensus.

Issue#10: BIP-110: The Miner's Paradox

Sound money or spam database: Miners must choose what they're mining