while i do agree that Saika will be a great way for getting a bit of extra damage at the end of HD combos when you don't have meter to blow on NeoMAX/when you've run out of HD bar already and can't MAX cancel his DM, i don't think that even an EX "8 Maidens" followed up by Saika would be close to the damage given by just straight up DMxxNeoMAX or even straight up NM. though at this point i'm actually start to doubt the existence of EXDM>Saika.
and so far i would not say his NM sucks at all. from all the information we have (which isn't much at all), it appears just about as good as Yatagarasu. it does slightly better than damage than a good portion of the other NeoMAXs in the game and has relatively fast start up so even though we don't know things like the range of the area it can grab when cancelled into, whether or not it has a vacuum effect to it, as long as they didn't put some sort of ridiculous restriction on it, i don't think it should be summarily dismissed as "bad" especially when we don't really have any real info on it. moreover, i think, while looking at it without hard facts and making an assumption, it would be easier to assume that this move, with its quick startup and the prospect of possible invulnerability being a NeoMAX, just might be godlike as a punish for just about anything within a certain range in the same way as Andy's.