Mortis was made a Cyberknight... accidentally. I might be dreaming, but I don't remember picking that option when I first created him in the days of yore.
Since then, I kind of turned the whole thing into a family tradition which has been watered down over the years. All my Tyrathlion characters (both the two capsuleers and various NPCs) have been more-than-average implanted, but not much beyond that. Repentence has moved in the direction of combat training, and I figure that they're generally 'better' than the average human, but they're not exactly true Cyber Knights, I think.
With the whole 'swords' thing, though... I think they still have a place and function in the Eve universe. Bayonets are still commonly distributed in modern militaries, even if their use is very much a tertiary consideration - and that's bearing in mind that warfare doesn't get much more enclosed than streets, and the occasional building. Fair enough - groundpounders wouldn't have that much use for a full-on sword unless it was something like the ME3 omniblades. But on a space station, or starship boarding? Confined corridors? A well armoured, fast and skilled soldier with a blade could be just as dangerous, if not more so, than someone with a gun.
Not saying it would be a standard thing, but to say that 'modern soldier is to sword as tank is to horse' is the wrong analogy. Cyber Knight shock infantry could well go with archaic traditions and suchlike, but with the right gear and training, they'd be mildly scary.