User blog comment:Kogath/Monster Hunter Generations Discussion/@comment-5231764-20160304154207/@comment-24965733-20160304194722

I'm going to agree with Lancelot that Astalos is the only really bad one. Mizutsune is pretty good imo, and Gammoth/Glavenus are excusable (though I do think Glavaldo would have been better). Maccou is fine, sure, and the Deviant names are bloody amazing. (Dreadqueen 10/10)

The big issue with Astalos is that "Raizex" A. basically sounded english already, and B., fit the brutal/aggressive characterization of the monster to a T. While Astalos just sounds like some sort of corrupt elven prince. Doesn't fit the monster at all.

And I believe it was mentioned that even though the materials were called "Amatsu _____", it wasn't the official localization and the team was planning on changing the name if/when it ever actually appeared in a game.