This is certainly interesting. It's not a clampdown on Watchtowers freedom to collect information, just an insistence by one Advocate General of the European Court of Justice that consent must be obtained.
I always felt uneasy filling all those bible study reports. They suddenly stopped asking for reports. I think this has been a point of controversy in watchtower for a while and I am happy that its finally coming to a head.
If someone want to read more: