Everyone is so excited about not having to pay software engineers to write code that they've forgotten what engineers actually do. It's less common in the software world but go find a civil engineer or an electrical engineer or an aerospace engineer and follow them around for a week.
At some point, there's going to be a document in front of them laying out how something is going to be built and they're going to be asked to approve it. And when they do that they're taking responsibility for the design. If it falls down, if it catches on fire, or if it crashes into the mountains and kills people, they're the name on the form saying that won't happen. They're responsible.
Claude 4.5 Opus is very impressive, but if it writes a software application that kills people it can't take responsibility. It can't be punished. It can't even really be sued.
I just don't see how we, as a society, can trust fundamentally unaccountable entities to build systems that can do real harm if they go wrong. I suppose the alternative is that Anthropic accepts full legal liability for everything its models do. Their unwillingness to make that move tells you all you probably need to know about their own internal confidence in those models.