she and he husband tried to change the religion of Egypt into worshipping one god, the aten, is one possible reason, but they do no think this is why she was erased. there is still no real answer to that question
The principal difference between real poetry and "modern" poetry is that you can recognize real poetry when you hear it. Modern so-called poetry is never recited, but always read, because its formless jumbles of words arbitrarily arrayed on a page are impossible to remember.
A real-world example of poetry can be anything that focuses on a real event that happened. For example, it could be about the Twin Towers, Great Wall of China, or about the wars the USA. had to go through.