Your first paragraph sentence does not make any sense as a topic restatement. It is confusing for an ENL to read as there is no way to understand the meaning of the sentence. Keep it simple. Don't just use advanced words that do not apply to the presentation. You will get a failing mark when your essay has no sense of logic and understanding.
less crowded areas
These are not the same as rural areas, also known as provinces, regions, prefectures...
potential advantages do not overweigh the disadvantages
What reference point led to this opinion? Lead into this with a starting reference from the original discussion. This is another sentence that lacks clarity.
because of concern about productivity and efficiency.
At least you have solid and clear thesis statement references. Good job!
You tend to focus more on vocabulary usage and word count rather than clear content writing and everyday English word usage. You do not score better when writing wordy essays that do not apply itself to a simple writing task. This is just an opinion paper, not a thesis or dissertation meant for peer review. Concentrate on making the reader understand a simple opinion based on simple reasons. That is how you get a better overall score. Your current presentation has so many errors ranging from TA to GRA that I am not confident about your final score.