Even if the lamp is designed to for 1A it's wiring has to be able to
withstand 16A so if a short occurs the fuse is blown with no risk at all.
Are you saying that all portable electrical devices sold in Germany are
wired with 16A flexible cable? I've seen plenty of cables with a German
plug on the end that look to me like 6A flexible cable.
To be fair, in the event of a dead short, a 16A breaker will trip long before
a 6A (or even a 1A) flexible cable would catch fire. And it's hard to think of
a fault on a lamp (or most other devices) that causes it to draw more current
than it should, but not be a dead short. But...
-tony