User blog comment:Kisukeiscool100396/Name romanizations in WSJA come from Tite Kubo himself/@comment-3358449-20121030153832/@comment-1248963-20121101032247

Except that Yhwach CAN be pronounced ユーハバッハ (Yuuhabahha) while Juhabach would normally sound Jyuuhabahha, a notable contrast in Japanese. Kubo has always shined for incorrectly using foreign languages and being pretty random when it comes to romanization. I'm not saying to jump the gun and change everything -though imho, it would seem the most sensible action right now- but pronunciation is the least of issues here