What a shame EA! Fuck off, i go to steam :-)
Since you are open to discussion and critics i would suggest you to use less aggressive language when you are on the internet. I would try something like, "Hey Cem, this is great material and thanks for the article. As far as i know from 80lvl Facebook group you can improve the performance or you may consider dropping the price. Keep up the good job." It doesn't have to be the same words but this kind of attitude would lead to a softer conversation because your intention will be clear.
@email@example.com Is there any link or video for the cheaper solutions that you mentioned before? Please share them. I haven't seen any cheaper, faster, HD, loopable and adjustable "normal map" flipbook video that you said in your first post. I would be happy to compare the results in realism.
Check out this video guide by You Can Blue on importing your own textures, created or from a texture library, into Unreal Engine 4 correctly. You will learn how to import a custom texture set into Quixel Megascans, create a layered detailed surface, import materials into UE4 as masked not RGB, build your material using parameters, tessellation and levels and create multiple instanced materials from the created material.
To reduce draw calls from the engine you should ideally made an instanced material from this using parameters so that you have the ability to use multiple variations of your material with different specularity, normal strength or any other parameter based changes that may need to different over multiple similar yet different materials (think different colored tiles for example in different areas of a level).