this is just generally incorrect.
PoW is not a method to achieve consensus under a different set of conflicting incentives. It is not a "method of working through reorgs".
It explicitly sets out to make it more profitable to mine on top of the next block according to a discrete incentive model. If reorgs occur then this incentive model is explicitly broken and the system is proven unstable ie. useless.
It's a careful balancing act and drivechains challenge this. "Preparing for this" is preparing for armageddon. You can be prepared all you want in the end the outcome is the same. We all die.