Avenger as well as many expansions have been cracked before too. Vengeance was aware of that and that's why they tried to already fix things (iirc e.g. that expansion got a copy protection too). It was only a matter of time and will happen very likely again and again as none is 100% secure, especially not some own halfbaken one.
The funniest thing I read in a facebook thread was that the cracked version runs smoother and faster So your current copy protection doesn not only seem to be weak but killing performance too.
I have no problem with dongles per se, but the increase in loading time is a real workflow killer. Also people that use cracked Avenger & xps very likely wouldn't have bought it at all anyways, so no real loss!?