It's been nine years since the chain split, which happened within the first year. No irregular changes have been made since then. Two major hacks caused over a hundred million dollars in losses to Parity, a company founded by one of the core devs. That dev lobbied heavily for rescue, and the community refused.

Bitcoin also made an irregular change, a year and a half into its history.

It just shows that the decision making is very centralized and failure of ETC shows that the community is not interested in a true immutable ledger.