Safety rules are written in blood. When you spend at least 8hours/day doing the same thing, even if that thing has a very small chance of generating an accident, that’s a lot of time spent doing something risky. Everyone has bad days, any one of those could kill you/severely injure you if you don’t take safety protocols seriously.
Any editor that support LSP has the same (or better) auto complete. All IDEs also have the same (or better) auto complete, don’t even need LSP.