Secondly, there are authenticity issues of any writing coming from an Ahmadi because it's a universally known fact that Jammat-e-Ahmadiya has in the past changed/altered Ahadees and Quran and their interpretation to cover-up Mirza saab's blunders of his dream world...
Thirdly, even if what you presented above is authentic, I know with certainty that none of us on this forum is qualified or trained or have deep enough knowledge of Quran to intelligently discuss this issue without unknowingly disrespecting Quran etc.
I know as an Ahmadi, you are allowed by your Jammat and you don't care to say anything be it against Quran and Ahadees to defend aimlessly Mirza saab's 'dimaghi ikhtra' but as a Muslim, I am scared of Allah of saying something that may go against the teaching of Prophet Mohammad (SA, PBUH)
You certainly consider yourself qualified enough to hurl accusations, but when it comes time to acknowledge a response to those allegations, all of a certain your qualification and training isn't deep enough? No meaningful debate can occur if you can't adhere to the basic notion of fairness and listen to the other side's response to your allegations.