Your implication in how you wrote was that the appliances are at risk. However the built in fuses in the plugs should mitigate that
One thing about the old standards is that, as you said previously, it might trip more with less efficient devices, however it was also a case that it wasn't trip switches, but fuse boxes with physical fuses. So it wasn't just a hassle, they needed replacement at expense, and a dependency on adequate stock.
Those days are gone, so yes, modern standards should be updated.
Yes, I understood your point. However, someone who has never seen a UK plug, or wasn't aware of the fuse would not. That's why I made it explicit. The main purpose may be to protect the wiring but my understanding is that the fuse does also protect the appliance, but yes, they should also have an internal fuse.
Are you saying the plug fuse offers no protection as they are already safer? I thought they help protect in case of a power surge or crossed wire. However it's a long time since I looked at UK power supplies, lol (actually Ireland, but it's the same, although I'm sure some regulations are different).