Columnstore cross_engine user can be seen by unprivileged user

An unprivileged user can see the cross_engine user's password:

oli@ubuntu1804:~$ mcsGetConfig -v -a | grep Cross
CrossEngineSupport.Host = 127.0.0.1
CrossEngineSupport.Port = 3306
CrossEngineSupport.User = cross_engine
CrossEngineSupport.Password = secret

oli@ubuntu1804:~$ ll /etc/columnstore/Columnstore.xml
rw-rr- 1 root root 19169 May 11 11:17 /etc/columnstore/Columnstore.xml

oli@ubuntu1804:~$ grep Password /etc/columnstore/Columnstore.xml
<Password>secret</Password>

The reason for this seems to be the sticky bit on the directory columnstore:

$ ll -d c*
drwxr-xr-x 2 root root 4096 Jul 12 2018 calendar/
drwxr-xr-t 2 mysql mysql 4096 May 11 11:17 columnstore/
drwxr-xr-x 2 root root 4096 Dec 15 2019 console-setup/

$ file columnstore
columnstore: sticky, directory

and for others readable files:

root@ubuntu1804:/etc/columnstore# ll
rw-rr- 1 root root 19169 May 11 11:17 Columnstore.xml
rw-rr- 1 mysql mysql 19145 May 11 10:12 Columnstore.xml-20210511
rw-rw-rw 1 root root 19153 May 11 11:17 Columnstore.xml.columnstoreSave
rw-rr- 1 mysql mysql 15372 May 5 23:00 ErrorMessage.txt
rw-rr- 1 mysql mysql 5619 May 5 23:00 MessageFile.txt
rw-rr- 1 mysql mysql 7456 May 5 23:03 storagemanager.cnf

After removing privileges on those files:

root@ubuntu1804:/etc/columnstore# chmod o-rw *

it looks a bit better. But logging in a non privileged user throws and error not seen before:

root@ubuntu1804:/etc/columnstore# su - oli
grep: /etc/columnstore/cmapi_server.conf: No such file or directory

oli@ubuntu1804:~$ grep secret /etc/columnstore/Columnstore.xml
grep: /etc/columnstore/Columnstore.xml: Permission denied

oli@ubuntu1804:~$ ll /etc/columnstore/Columnstore.xml
rw-r---- 1 root root 19169 May 11 11:17 /etc/columnstore/Columnstore.xml

oli@ubuntu1804:~$ mcsGetConfig -v -a
oli@ubuntu1804:~$ echo $?
0

Possibly I would expect an error here???