To be fair, the TwinStar has a remote ADF option, which most European customers will go for. The aircraft is pretty much an integrated package, and it's nuts to need an NDB in it - the aircraft is all electric, so if the power goes, the NDB goes with it.
Besides, the EASA has certified the TwinStar without the NDB, so it's perfectly legal - saying it's arrogant is a bit like HMV dropping cassettes and sticking with CDs - it's new technology - and progress. NDB is much less reliable then the combination of GPS Primary and VOR.