DW is also wrong, in fact they're always wrong.…and DWs are called rata toms
…and ddrums are called decabons
All the same concept with 6” heads and varied length tubes. Some are made from fibreglass and others are aluminum.
You can also DIY if you are handy. Lots of resources online for making them.
Ddrum is not a real drum company, so whatever they say doesn't matter.
Your kit is setup the only way REAL drums should be set up.