No, I didn’t read it into that sentence. In the previous sentence, though, he writes that “shar issurim” are a “safek gadol” so it’s hard to believe that in the following sentence (your favorite line 🙂 ), he is specifically excluding bishul.
When you quoted the Chasam Sofer YD 120 and Igros Moshe YD 2:132 that stam yanom is assur, you were missing my point because I wasn’t arguing for stam yaynom of a mechallel Shabbos to be muttar.
The way you read that Shach 124:14 that Yayin Nesech depends on Avoda Zara, he is arguing on the Ra”n in Chullin (last one on 4b).