If you want to read the biographies of Gedoilei Yisrael, all you have to do is buy one book of one random Gadol from Artscroll, the rest will read the same.
The Gadol portrayed in Artscroll books was born a genius, knew the entire Shas by the time he was six years old, never got angry, was never wrong, and was the biggest baal chesed and the most caring person in the world.
The truth is that this is not true at all, some went to public schools, some never opened a sefer until after the bar-mitzvah and some had parents that weren't frum. Some were fervent Zionists (Chas Ve' Sholom) and some like Rav Eliyashiv and Rav Shlomo Zalman Auerbach had Rav Avraham Yitzchok Kook z"l as their Mesader Kiddushin. One great Gadol had severe Shalom Bayis issues. Many had children that went off the derech. One particular Gadol that comes to mind had a son that converted to Christianity. Many were wrong in their predictions and in their Halachic rulings, but you will not get any of this from their bios.
You see Artscroll is holier than the Tanach. In the Tanach all Gedoilim are presented with their flaws and blemishes, and not one frum Jew would think of them any less. But the gedoilim of the present century, according to the Artscroll bios, were absolute melachim who never did anything wrong in their entire lives.
In the interview, R' Gedalye Zlotowitz says that he is not "re-writing" history, he is only "omitting" certain information, and that the bio is meant to "inspire."
R' Gedalye is being disingenuous when he says that this was "his father's idea"
His father's first Bio was of the Netziv, it was called "My Uncle the Netziv" and was translated from the Hebrew version of "The Netziv" which was written by Rabbi Baruch Halevie Epstein, who was the author of the famous commentary the "Torah Temimah.: Rabbi Epstein was the nephew of the Netziv. In his biography of his uncle he nonchalantly mentioned that the Netziv read secular newspapers. When Artscroll originally released the book, they included this tidbit. But after tremendous pressure of the Yeshivishe Roshei Yeshivos, Artscroll recalled the book and reprinted it without the "newspaper" story. So when Gedalye says that Artscroll is omitting information that would put the protagonist in a bad light and make him sound normal, he is lying, it was omitted because of pressure.
Omitting uncomfortable truths is akin to rewriting history. Presenting a glorified and sterilized version of history isn't "inspiring" in fact it's incredibly harmful. It presents an impossible model of how a great person is supposed to look like, void of humanity and weaknesses, and lying by omission is still lying.!
