According to the article, at this point they've given up on the idea of disabling end-to-end encryption or holding keys in escrow, due to the concern that hacke

According to the article, at this point they've given up on the idea of disabling end-to-end encryption or holding keys in escrow, due to the concern that hackers could use the same backdoors. From what I can tell, the proposal is that a judge would be order to order a technically-feasible wiretap, and be able to fine the company for not complying. The problem is that "technically feasible" would be up to the judge, so the company would need to be able to explain via their lawyers why a given wiretap could not actually be implemented.