Well i always think these debates are pretty Meh. But i still read them.
I mostly had issues with what problem Entity stuff solved, as in i couldn't see the point all that much. I assumed because i didn't understand them. Turn out i did. Also turns out when the right problem came along then it did become clear what they are good for. I should also note i didn't use it for performance, since i got a few clusters i can use with over 5k cores. But it made the code small and fairly compact.
For smaller indie games however its less clear how it helps. Its up there with writing an engine. Write a game, not an engine. No one else is going to use it anyway.