I'll actually steelman against this; there's nothing to criticize them for. The US does the exact same thing and supports regimes around the world that perpetuate cyber-terror as a weapon of asymmetrical conflict. The US has to come to the table for negotiation or secure itself accordingly.

The sheer elegance of hacking a law enforcement intercept architecture that's designed to make intercept traffic hard to track would be so irresistibly satisfying to any hacker that I don't see how they could say "Nahhh, too far."