I can't say I agree. To me this is equivalent to saying "I have way more music in my head than I have room for and I can't afford to expend more than about 0.0001% of context on a piano". The tool you use for 8+ hours a day is extremely important and even small gains will pay dividends over the long run. The more efficiently the text editor allows you to do tasks, the more time you have to think about other tasks.