What if NBE Logo become Flat

A While ago I was studying some logos and how they changed over time, and I found out that there are some major brands like KFC, Huawei, Lay's, Etisalat has not yet become completely flat, so I started to wonder what will be the next step of these logos? And how can they be updated better? So, I started to collect some logos and trying to update them and see how is the effect on them? Have they become more visually attractive? Are they acceptable for B2C usage? Will they help to make UX/UI better on small screens and even other places?

So far, I Applied this on 20 different logos including corporate brands an even local brands, I tried to choose diverse kinds of businesses so that I can see better results, some logos like food products where the hardest and some of them lost a lot of its value and others like banks and other brands gain more value and became even better. Here are the whole logos that I've made in before and after

https://www.behance.net/gallery/68186923/What-if-logos-became-Flat