I completely agree with your points regarding data cleaning.
HOWEVER as a systems guy - we will continue to use bash/sed/awk and friends.
Why? You can usually expect to have these installed in a default Linux installation.
Julia is not a default install.
My argument falls apart for cross platform Windows and Linux of course!
Also systems guys are VERY wary of making systems dependent on any “non standard” versions.
I have a genuine war story of a $million SGI system which would not boot following an update of the bash version (not an official SuSE update). Cue me booting from a USB stick and reversing the update.