I'm not sure that it helps that much in terms of slowing piracy, either. I mean if you go with something really complex and overbearing like iLok or eLicenser then ya. However short of that, it'll probably get cracked if there's enough interest in it. Even the overbearing stuff gets cracked if people really care. Look at Blu-ray. The complexity of the AACS key tree and BD-J protection is pretty staggering and yet there is software out there to easily bypass it. Audio software sometimes avoids that since less people care about it, but still.
I'm also not convinced it helps sales that much. A copy pirated is not necessarily a sale lost. Plenty of people will go and download something for free, but wouldn't pay for it if they couldn't, they'd just do without. I remain unconvinced that piracy and sales really have a whole lot of correlation.
So, I'm happy, I think it is the right decision. I'd reward it, but, well, I've already bought all his libraries so I'm pretty much done :).