VTC maybe is Asic resistant for now, but surely multipools can pick it up. You just change name of .exe file to cgminer and cgwatcher can handle it, so why multipools wouldn't be able to?
Anyway it's the first coin I mine and hold and hope for great future!
AFAIK the reason why its not profitable for multipool is that the difficulty changes every block.
Multipools hop on "easy" coins to make profit and leave as soon as difficulty changes. But VTC difficulty would change instantly. compared to LTC which would take ~2-3 days