One reason why such advice stays around is that it is very hard to implement or refute it. Perhaps it works, perhaps it doesn’t, but it typically requires revamping your whole project to find out.
Sababu moja kwa nini ushauri huo anakaa karibu ni kwamba ni vigumu sana kutekeleza au kukanusha yake. Labda ni kazi, labda haina, lakini kawaida inahitaji kufufua mradi wako wote kupata nje.