There is nothing productive about searching online for some stupid command that is outdated for 2 years, breaks some shit and then you need another 2 hours to unfuck it because it's not obvious from the long noodle of a command how to revert it. For something that could just be 3 clicks through control panel that every idiot could navigate without having to use online search engine.
Why are you entering commands that you read about online without knowing what they do? There's a running joke that you need to enter rm -fr / to remove the French language from your system; it actually wipes the entire disk mounted to /.
When you know what the commands do, using the terminal is always going to be faster (i.e., more productive) and use fewer system resources than using a GUI. That's just a fact, sorry if it annoys you when people point it out. Whenever I need to move a lot of stuff around, I will always use mv instead of Thunar (my file manager) even though I prefer a GUI for most tasks.
I agree. For regular user facing tasks, the terminal should be a last resort. I say this as someone who will happily defer to the terminal if I need more advanced control. But when basic configuration is subject to just CLI, it's not as accessible as it could or should be
There are two different "efficiency" and "simplicity" perspectives clashing here. If you already are proficient with the CLI it's arguably more efficient and/or simple than GUI solutions. If you are not then there's literally a steep learning cliff in front of you, something many in the first group apparently either forget or otherwise want to ignore. It just sucks, some people in the community do have a lot of knowledge but a complete lack of understanding for people outside of their tech bubble.