Complex database password causes fatal error after installation 2021 R1

A too complex database password will cause this error after installation.

- Access violation at address 1A90D5A3 in module 'eware.dll'. Read of address 00000000 -

Why is it not possible to set complex database passwords?
Why doesn't the installation warn about too high complexity?
Why are there no useful error messages so that you can understand what' s going on?