I think reverb-ahead-of-amp got an undeserved bad rap with the advent of higher-gain amps, where it really does sound awful. Gain-wise, the VK is pretty close to a tweed amp (which may be why people compare it to a Bassman, although there are some pretty significant differences), so you really don't get the kind of "smear" that you'd get running a reverb ahead of a high-gain Marshall, Soldano, or Boogie.
That said, the reverb-first approach of the VK does have its charms (unless you really don't like it, in which case they're quirks). To me, it's a more organic sound than you get from the 'verb in a BF or SF amp - you very quickly get the hang of "playing" the reverb. Having separate dwell, tone and mix gives you a really broad palette to play with. By comparison, I always felt that the 'verb on later Fenders was just something that got "tacked" on to your tone no matter how you approached the guitar. It has always seemed to me like there's just three usable reverb settings on the BF and SF amps: off, surf, and everything else.