From the correspondence in the comments of R' Spitz's article:
Last, I want to bring to your attention that in the kol koreh against Rabbi Moshe Heinemann signed by Rav Yosef Shalom Elyashiv, Rav Nisim Karelitz, Rav Shmuel Wozner, and many others, it says “In our opinion, use of “Sabbath Mode” to change the temperature of an oven on Yom Tov represents an assault on the sanctity of Shabbos and Yom Tov and will lead to deterioration in their observance. We hereby declare that one may not rely on “Sabbath Mode” operation to adjust oven temperatures on Yom Tov despite the presence of a Hechsher on these ovens.” Now, we all know that Rabbi Moshe Heinemann is a fine upstanding talmud chacham of the highest caliber.
Sometimes, people paskin with their emotions, not the real and accurate halacha. That needs to change, and it is our intention to let people decide for themselves, as Boruch HaShem today laymen have much more information available to be able to make informed decisions.
What a Mechutzif this guy is!