It's commonly said that the Drivechains proposal gives much power to miners and that they can steal money from these drivechains, but I keep thinking that if what they can do is to vote on which transaction will be able to spend from the hashrate-controlled escrow, then if a majority of miners collude they vote on a steal transaction, fine.
Now, a majority of miners can also steal the funds from Lightning channels they're participating in if they are able to spend an old channel state and don't allow the new state or the penalty transaction to be published in time.
Some differences between the two steal attempts are:
- To steal on Drivechain the colluding miners don't ever have to orphan blocks.
- They can steal all the Drivechain funds at once.
Are these the crucial differences? Do they make Lightning inherently safer than Drivechains? What am I missing?