I don't follow. If you shift to multi-crew options, you need more personnel per ship. Even at an optimistic 1.5x personnel per ship that would result in some fairly shitty optempo for many, you're talking about a net + in required personnel until you decommission at least a third of the current carriers.
If the crew is not ready to operate on deployment, then the carrier is not able to perform its function. Ergo, if the off-crew cannot maintain proficiency while the ship is out to sea, then multiple crews aren't going to increase in-theater presence with fewer ships.
Boomers can do it because their crews are relatively small and they can get adequate training from simulators that can support the sailors in off-crew.
I got the impression from senior leadership that they have and are at least considering multiple cost-cutting options. Not just for carriers, but also for CGs, DDGs, and other ships. I'm pretty sure this was discussed and if it's not being done, there's a good reason for it.