Yes, but where will the devs hardfork if asic is capable to change N as well ?
To a different algorithm of course!
VTC is not an algorithm, it's a mindset - we will do whatever is necessary to beat ASICs.
A repeatedly hard-forking coin is not suitable for real-world use or merchant adoption. Right now VTC is yet another low-market-cap trader's coin with a small user base so you can get away with this "mindset". Hopefully your eventual ambitions are grander than that.