Even if the argument is taken to the absurd, the parent's approach can still be valid; if the user worked on an infinite number of environments (remember, this

Even if the argument is taken to the absurd, the parent's approach can still be valid; if the user worked on an infinite number of environments (remember, this is the assumption of the parent poster), it'd be overall more productive to use barebone tools with zero learning overhead, rather than spending infinite time with the learning overhead of the infinite environments. The core point is overall productivity; it may still be more productive overall not to know some tools extremely well.