I'm on the fence about this.
On the one hand, all of the Russian court's reasons for the ban are arguably justified, particularly with what we know about the WTS.
On the other hand, though (also because of what we know about the WTS), this won't really help in the long run. It's too much of a stopgap measure in dealing with them.
Plus, it rubs me the wrong way when governments use heavy-handed tactics.
Simply stripping them of tax exemption is still, IMO, the best way of dealing with them...
At least, if any JWs start touting this as the Beginning of the End, you can counter with...
..."wait, according to Revelations, isn't 'Babylon the Great' supposed to be attacked first? We just had a Public Talk about that, after all."