I thought it was a bug at first but I'm starting to think that it's a genuine attempt to target VPNs.
If it was a bug that was causing random people to be redirected the amount I'm seeing it (90% of the time) then I'd think it would have made much more news then it has as random people get caught up in the bug. (It's very noticeable when your results turn indian!)
It seems targeted to me! Just my two cents though!