Odd that they released this today, TPG reported on this many months ago on the JFK side:
https://thepointsguy.com/news/delta-...300er-jfk-lax/ - makes me think this is more about 764s internationally ex-BOS, with the rest of this thrown in.
I've done this on the 330 a few times which is a much better trip in every cabin, but there's no doubt I'd take 2-4-2 over 3-3 any day in the back.
These trips are so short that if I'm up front on an overnight, I don't really care about the old IFE and things, I just want to lay flat and go to sleep, so this is probably a net win over someone climbing over me while I try to sleep.