And I'm actually surprised that people are taking this approach as if it was intended to be permanent.
It's obviously not.
Death Metal ended with UbberGod Diana beyond the source wall knowing and having the power to shape anything, a new back-up Earth, the promise of a "coming threat" and a mission statement. It's quite obvious that "somewhen" (I'd bet in 5 to six years, but who knows) things are gonna get straightened out and yet another shift in the status quo will come.
HOWEVER, putting the weight of "fixing continuity" at the shoulders of Snyder and Death Metal was just not viable, on account of DC continuity never having been even close to the mess it was in the last decade, particularly in the last 5 years. Add to that all the changes in management (Dan Didio's firing being the most high profile but far from the only one) and all the divides nurtured by the previous administration. They can't say "ok, this is the DC Universe" right now because, no matter what, 2/3 of the fans will hate it.
So now they're gonna focus on having a healthy DCU and audience again. A Superman that works well enough without gimmicks, Flash fans that don't want to kill each other, introduce some diverse legacies without the risk of their introduction erasing anything about their predecessors, maybe take a tour on some new Earths.
On such a task, it's obvious there will be inconsistencies, there's no way to avoid them. Death Metal ending accounts for that going forward.
Then they'll know what actually works. And only then they'll straighten things out.