>However, we had a long discussion with one programmer who insisted it was a bad idea because of "premature optimization", the fact that React docs does not have recommendations about it, and "nobody does it that way". In my opinion, this was a clear case of a programmer resisting the system approach because he wanted to spend time fixing the same problems over and over and pretend to be working hard.

This article and advice is awful. The fact that the author ignores completely reasonable arguments made by the dissenting programmer, instead attributing their 'resistance' to some dubious, made-up notion that they would prefer to do meaningless rework, speaks volumes.