If I recall correctly the vortex deck and the actuator decks were also USPCC releases but their backs did not resemble their logo.
Vortex is not a Bicycle branded deck, Actuator uses the same logo just with color variation.
It's better to explain like this, Vortex is made by the USPCC but its not a "Bicycle" deck. When a designer makes a deck they have a choice to use the brand name/logo for marketing. However, you can still use the bicycle paper stock, which itself had several variations without using the logo. It's all marketing.
For instance, my recent deck is Mythos: Necronomicon which is also referred to as Bicycle Necronomicon. But in theory it's actually a Bee deck. We decided to go with the casino grade paper commonly used by Bee casino decks instead of the paper stock used by Bicycle decks. Originally we didn't use the Bicycle brand name on the tuck box, but soon after added it on due to the recognition the brand name brings. Thus it became a "Bicycle" deck, which was originally a no name "bicycle/uspcc manufactured" deck (much like Vortex) but in reality is actually a "Bee" deck.....yeah...it just got a bit more confusing lol.
In the end, consider the Bicycle brand logo as a copyrighted "font". If you alter the font to the point where it no longer resembles the original copyrighted font, then it is no longer the same font. It's that specific font that the USPCC owns, so if you stray too far from the original copyrighted font, this can cause legal complications which in theory would require the USPCC to copyright this new variation of their logo. Since the USPCC won't obviously go through that process, they simply reject the art or adjust it themselves to represent the original copyrighted font.