Suppose a majority of miners use software that prohibits timeouts. This would be a softfork, so the blockchain for nodes using the previous software will still be valid. However, nodes that defer blocks with a time delay are orphaned by the mining majority of the network and outperform all chains that contain timelocks. No chain that contains timeouts could grow, and existing nodes would treat the chain with new rules as the only true chain.
How can users / miners who want to retain the use of time locks recover in this situation?