Hey Don.
There's probably only one person on the planet that is more picky than me about the direction of the cut... Richard Turner! If a deck isn't traditionally cut, then for me it's pretty much useless, and a waste of my time. Before even looking at the AoS, courts, or even the back design, the first thing I check for is the cut.
I know the direction of the cut just my running my finger along the card edge... but then for added certainty, I give the deck some interlace riffle shuffles. The SWE deck that I've got is definitely traditionally cut -- 150% confirmed.
I do however stress that the SWE deck I have got is traditionally cut... because that doesn't mean that every other deck is.
Erik Mana told me that even when you ask USPCC to traditionally cut cards, even then there is no guarantee that every single deck will be traditionally cut. I believe him because:
(1) The first (black) Madison Rounders deck I received was traditionally cut... but every other black Rounders deck I received had a modern cut.
(2) The Madison Rounders Private Reserve deck was said to be traditionally cut... but the one I opened was NOT.
Therefore, the deck I got may indeed be an anomoly.
Saying that though, some Ellusionist decks were consistently traditionally cut. For example, Sultan Republic, Executive, and most recently, the white Kings deck.
You're right about the USPCC excuse for discouraging traditional cutting being seriously lame. USPCC cutting sucks whichever direction they cut in. I think the true reason they don't like traditional cuts is because of the extra work (turning the sheets face down).
Anyway, the one way thing has pissed me off a fair bit. The deck would have been great for me as negative-strippers, had it been a proper two way design!