“It shouldn’t be”
I agree, as I said in the post. But, those who drink chalav stam either hold the heter is still active or hold that it’s OK to hold by the Pri Chodosh now, so there’s not much of a difference l’maaseh. If, theoretically, something were to happen with the government that for sure ruined Reb Moshe’s heter, it would be nearly impossible to get the bulk of the population to go chalav Yisroel overnight. If that situation were to occur, I think an emergency heter to hold by the Pri Chodosh would emerge as the end of that article seemed to imply.
“Davar she’eino miskaven isn’t a heter for cholov aku”m.”
I hope you don’t really think that’s what I meant. People know whether or not they rely on a heter. If they do, they do. They don’t think about the reasoning behind it every time to buy milk. Chalav stam anti-vaxxers aren’t thinking “I trust the government here, but not here.” They’re thinking, “I hold it’s mutar to drink chalav stam because I don’t hold by those who say it’s assur. I hold it’s mutar to deny my kids basic medical necessities because I don’t hold by those who say it’s assur.” It’s not a battle that can be won on a religious or logical front.