Wii games HAVE been having a lot of trouble using the wiimote thus far
Euh... no, Third parties have been having a lot of trouble about working a little bit to use correctly the Wiimote
Take a look to Nintendo an decent third party games, most of them have a pretty good use of the control.
In terms of gameplay, even if at level design or anything else, the lastest Castlevanias have been like the previous ones: Marvelous, and that's why i, even being a Iga hater (yes, i am), trust in Judgement, 'cause the Iga team is behind it.
Of course i know tha IGA is not the programmer, as i know that Miyamoto hasn't programmed Galaxy or Kojima hasn't programmed Metal Gear Solid 4, but there's a fact, and is that those three productors are always supervising the game and don't let their teams give to the games a bad gameplay.
Judgement is going to have a great control, by now the control scheme is very well chosed and seems to be really comfortable, if they focus a bit in the Wiimote they will obtain a good reponse, and i'm sure that they will get it.
Just trust me, there's no need to be worried, is CastleVania, is the Iga team.
In terms of Gameplay, the fedora guy and his employees are the fucking gods.