Hi,
The question has been posted on the official github on Monero
https://github.com/monero-project/monero/issues/10259
But the answer is ... weird..
a connection to daemon is not required
but this is not true
as when you do monero-wallet-cli address new for example you get
This is the command line monero wallet, it needs to connect to a monero daemon to work correctly
and I can see in my monitoring that indeed monero-wallet-cli try to connect...
If anyone have an ideas...