But it doesn't have a mains fuse. That's what this is all about.
Please refer to the last time you brought this up. It appears you're being wilfully obtuse for the sake of arguing.
https://www.eevblog.com/forum/blog/eevblog-1160-weller-responds/msg2068060/#msg2068060
That didn't proved anything to me.
If the smoking, fuseless transformer looks like it's safe to you, well, you're free to think whatever you like. But don't expect that most people will think the same.
And as i said, you cannot guarantee the safety of a transformer that was smoking it's enamel. A fuse would have blown before that happens.
So, why not to include a fuse, when it's very cheap, everyone else uses it, and would improve the safety of the device? Nobody designs mains connected equipment without a mains fuse, because when shit goes wrong with mains, it goes really wrong. Too much power there. Would you remove the fuse just because your found some certification that won't require one? I wouldn't expect a simple 40 watts soldering iron to be fused, because, well, there's no much space to even put a fuse in there, and it has just a heating element inside, and that's it. Neither would i leave it connected and go away for any significant amount of time. But a soldering station? Is there even another fuseless soldering station out there?
Maybe to weller this falls under the ridiculous reasoning of "this may cost $1 per unit, but in 1,000,000 units, that's $1,000,000 we could save". But then, why not just charge $1 more, and be done with it?
Maybe it's a design issue or manufacturing error? But then, it's crazy if they don't fix it, as they could get sued. At least go the "xbox way", and provide an external safety.
And even more important: if they have a good reason for the fuse to not be there, just share that information with the electronics community!!