I am NOT a Viper hater. I just think the devs didn't do a very good job of conveying what it is. A second western style sword DPS job has been a niche that has been unfulfilled for a long time.
Samurai, and Ninja are eastern.
If you want a classic RPG sword user that isn't a Tank, you have to use Red Mage, which is a MAGE even though it is a cool sword fighter.
Imo I think they should of called it a Swordsmaster, or Blademaster because it strongly resembles the Swordsmasters in other RPGs such as the Fire Emblem series, with the unique sword combo stance making it a more unique concept to FFXIV.
Viper is such an odd name for a job, and though I don't hate it, I do hope I learn to love the name of the job overtime. Does it actually have a meaning to the snake motif? If that ends up being the case, that actually would be quite cool. I do love how sometimes Yoshi P and the team are very good at delivering surprise concepts that we don't fully understand, but grow to love later. Such as Shadowbringers. No one expected that, but now its the fan favorite expansion.
Anyway these were just some of my thoughts. >:3