True, but the default parameters of cryptsetup are quite secure with a high entropy password and they are seldom changed. A volume opened with the wrong password will fail to mount with no ill effects, you would just crypysetup delete and then re-create it again with the right password. I've addressed at length the other issues above, initializing an encrypted drive with random data is a widely recommended countermeasure against attacks that exploit the way the filesystem allocates sectors, VeraCrypt does it by default and many graphical setups for Linux offer the option for encrypted drives.