It’s interesting to note that they take great pains to differentiate this from the Shabbos Mode ovens, which almost everyone assers.
It may be better, according to some, regarding the grama issue, but I don’t see how they get around the zilzul issue. The link from that article to the Kol Koreh no longer works, but I’ll quote the translations:
To all of the above we affix our signatures:
(HoRav) Yosef Shalom Elyashiv”
(HoRav) Elya Ber Wachtfogel
(HoRav) Shlomo Miller, Rosh Kollel, Kollel Avreichim Toronto
(HoRav) Gershon Bess, Rav Kehilas Yaakov, Los Angeles”
I left out the part about melachah/grama, because the technology is different, but I don’t see why the zilzul Shabbos issue is better.