I don't know what was not evocative of the name slayer.It's not baseless, you're just one of those engineer-minded people who like 4e and don't get that to vast majority of people classes are evocative archetypes and not trait packages. Seriously, I have no use for class based system where the classes are not built around strong themes. If I just get some bland powers that I get to refluff how I want, then I rather play some game which doesn't even pretend to offer the fluff and in which I can built the character from scratch with some points and such. Classes for purely mechanical reasons hold zero interest to me.
It's a Slayer. It is a warrior who slays things. It focuses on dealing high damage and surviving counterattacks to deal more high damage.
It made sense, had an image,and its mechanics matched the image.