ECS or no ECS? it doesn't matter

the problem of that kind of engines is the users are computer-illiterates

they don't understand how memory/cpu works

what happens is 90% of 3D indie games suffer from major performance/optimization issues

and we start to see the same kind of performance issues in AAA games, because, as always, we always want to cut costs, everywhere

worse, clueless people are gaining power and are getting into high positions, and they hire more clueless people so nobody can oust them, or tell them they are wrong, they want people to comfort them, and defend their bad decisions