1/ No he has not. As @A_SJamal correctly pointed out, there was errors in the writings of the Urdu. As proof of this, I will quote from the forward from pg. xxvi. https://twitter.com/alislamtribune/status/1290040755948408835

2/ As proof that Malfuzat sayings are not on the same level as the books of the Promised Messiah (as), the scholars appointed by Hadhrat Muslih Ma'ud (ra) have stated that all the literature surrounding Mirza Ghulam Ahmad are divided into 4 categories of authenticity:

3/ You will not find a single book directly written by the Promised Messiah (as) that supports your view, and if so, I challenge you to quote it. You challenged us to provide us with a quote written by him, but we both know, he has not. So no need.

4/ https://twitter.com/alislamtribune/status/1290336200390324229?s=19

Why for 20 years one states there is no death for false prophethood by human means, and then finally, he says the opposite to please a mullah? That is not a good tactic since they would still hate him. Do you realize how ridiculous your logic is?

5/ https://twitter.com/alislamtribune/status/1290336527034265600?s=19

Sarcasm is not going to save you from your ridiculous claims. There is no pseudo-"apologetics" here. The same scholar who compiled these works under Muslih Ma'ud also stated the authencity level. The only one foolin around is you.

6/ Next time, think Outside the Box, okay, Mr. @alislamtribune ? Pun intended.