It’s also odd that the exchange would step into mediate. The miner is effectively playing by the rules i.e. if you have 51% you can do what you want.
It's only odd if you look at the community part of a decentralized coin as only the miners. You're missing the other critical parts which are its users and the exchanges.
A cryptocoin is worthless to miners if it cannot be exchanged, and it's worthless to exchanges if no one wants to trade it.
A cryptocoin is worthless to miners if it cannot be exchanged, and it's worthless to exchanges if no one wants to trade it.