Unless Blizzard add it back in in a patch later (once the 'shine' has worn off the game for the pirates') no LAN is a done deal. If it reduces piracy without resorting to online activation nonsense, it's the least of several evils.
I don't agree, but to each his own I guess!
If you can revoke, I prefer to activate a product online (some even offer alternative offline activation) and be done with it rather than having to be online all the time to get a sort of "LAN support".
and a patch to activate real LAN support ? I don't see that coming easily
either LAN is built in or it's not...
if it's not built in, the cost to put it back in is more important than deactivating a simple online activation or any cd protections as some companies have done in the past after the first year or two of commercialization.